Timeline


Below are important dates in the history of Pokemon. If I've missed any important dates, please email me and I'll add them.

1982

Satoshi Tajiri starts Game Freak, a fan magazine about video games. At first, it was handwritten and stapled together. It covered game techniques and gave secret tips for games like Donkey Kong. Among the contributors was Ken Sugimori, who ended up drawing all the art for the first games, Pokemon Red and Green.

1989

April 26: Games - Game Freak, Inc. is founded by Satoshi Tajiri. To honour Satoshi Tajiri, the main character of the Pokemon Anime in Japan was named after him.

1990

Games - Inspired by the GameBoy's game link capability of transferring game data between two systems, Satoshi Tajiri starts to work on Pokemon.

1995

February 27: Games - Pokemon Red and Green for GameBoy are released by Nintendo in Japan. To everyone's surprise, including Tajiri's, both games end up being the second best selling GameBoy games in history, selling over 10 million copies in Japan alone. The main characters were named after Tajiri himself and his friend and lead artist, Shigeru Miyamoto.

1996

October 20: TCG - Game Freak and Nintendo release the starter deck and Base Set, marking the beginning of the popular Pokemon Trading Card Game in Japan.
October 27: Games - Pokemon Blue is released in Japan, featuring improved graphics and sounds.

1997

March 5: TCG - The Pokemon TCG Jungle set is released in Japan.
April 1: Anime - Due to the video game's overwhelming success, the Pokemon Anime premiers on TV Tokyo in Japan.
June 5: TCG - The Pokemon TCG Fossil set is released in Japan.
November 21: TCG - The Pokemon TCG Team Rocket set is released in Japan.
December 16: Anime - The infamous episode, Electric Soldier Porygon, causes 685 children to experience seizures and seizure-like symptoms due to repetitive flashing of blue and red lighting effects. Due to this, the Pokemon Anime was pulled from the air for several months and the episode destroyed. Pokemon was only put on the air again under the condition that the colours be toned down in future episodes. This episode gained Pokemon the title of "Most Seizures Caused by an Animated Television Program" from The Guinness Book of World Records.

1998

Games Pokemon Stadium, Pokemon's first game on Nintendo 64 is released. This game featured only 42 Pokemon and was never released outside of Japan.
March: TCG - The Pokemon TCG Vending Series 1 (Blue) is released in Japan.
April 26: TCG - With the release of Brock and Misty decks in Japan, the Gym Leader set is first introduced.
June: TCG - The Pokemon TCG Vending Series 2 (Red) is released in Japan.
July: Anime - The dubbed version of the Pokemon Anime makes its debut in syndication in the United States on FOX Kids, weekdays in an early morning slot. The first episode to air is Battle Aboard the St. Anne.
July 18: Anime - The first feature film of Pokemon, Mewtwo Strikes Back, makes its debut in Japanese theaters in fourth at the box office.
July 25: TCG - Pokemon TCG Lt. Surge and Erika Gym Leader decks are released in Japan.
August 27 - Nintendo launches the Pokemon franchise Stateside with a 10-day nationwide tour; they even get Topeka, Kansas, USA, to rename itself to Topikachu for a day. Pokemon dolls are even dropped from a helicoptor to lucky fans below. Before its debut, Pocket Monsters was renamed Pokemon outside of Japan because another company had trademarked the name "Monster In My Pocket," making it impossible to use "Pocket Monsters". Since many Japanese players had already shortened the name to "Pokemon", Nintendo chose the name "Pokemon".
September 7: Anime - The Pokemon Anime begins airing regularly, every Saturday, on Kids WB! and quickly becomes the number 1 rated kids' TV show, beating shows like Good Morning America.
September 12: Games - Pokemon Yellow is released in Japan. It ends up selling 3.16 million copies.
September 28: Games - Pokemon Red and Blue are released in the US and go on to sell 9.85 million copies.
October - Fast food chain, KFC, runs its first ever promotion with Pokemon. With every Kids' Meal, you get your choice of four beanies: Dratini, Zubat, Seel, and Vulpix.
October 23: TCG - The Pokemon TCG Gym Leader 1 packs are released in Japan.
November: TCG - The Pokemon TCG Vending series 3 (Green) is released in Japan.
December: TCG - Wizards of the Coast acquires the license to the Pokemon Trading Card Game to sell in markets outside of Japan and starts producing cards.
December: TCG - The Pokemon TCG 2-player starter set is released.
December 12: Games - Hey You, Pikachu! is released in Japan. Its Japanese name is Pikachu Genki dechu-, a pun on "Pikachu genki desu" (Pikachu is fine). The game features voice-recognition technology; this is used to talk to Pikachu. It is also the only game that utilizes the N64's Voice Recognition Unit (VRU).
December 18: Games - Due to the success of the Pokemon card game, a Pokemon TCG GameBoy game is released in Japan.

1999

January: TCG - The Pokemon TCG 1st Edition and Unlimited Base Set packs are released; the Starter Set and Demo Decks had previously been released in 1998.
January 8: Anime - Pokemon: The Orange Islands debuts on Kids WB!.
March: TCG - Prototype League is introduced for Pokemon TCG at participating locations.
March: TCG - To help promote Pokemon TCG, Wizards runs a mall tour. In one location, in New Jersey, Wizards expects 5,000 kids to show up and to their surprise over 12,000 show up, causing the event to be cancelled due to safety code violations.
March: TCG - Nintendo's official magazine, Nintendo Power, includes a First Edition Base Set 1 Charmander inside their magazine.
March 6: TCG - The Pokemon TCG DCI Tournament system begins.
March 21: Games - Pokemon Snap is released in Japan.
April - The Pokecenter section debuts in Nintendo Power; it features the latest Pokemon news and updates, TCG strategies, and team analysis.
April 14: Games - Pokemon Pinball is released in Japan. It sells 1.02 million copies in Japan.
April 30 - Pokemon Stadium 2 (known as Pokemon Stadium in the US) is released in Japan. All 151 Pokemon are featured.
May 5: TCG - A Winnipeg school bans Pokemon TCG cards because they cause fights. Click here for the full story. The Winnipeg school isn't alone, as many other schools worldwide are doing the same thing.
June: TCG - A Pikachu Base Set card (gold stamped) is handed out at the yearly E3 event in California; this was the shadowless, red-cheecked card. Later on, the same card was given out by Nintendo Power, but it was shadowed and had yellow cheeks.
June: TCG - Pokemon League Year 1, Kanto Region, begins in participating stores in the US; the Badge Books are first introduced.
June 28: Games - Pokemon Pinball is released in the US and Canada.
June 29: Music - The first Pokemon CD, 2BA Master, is released in the US.
July: TCG - Pre-release Clefable is first offered at League Year 1.
July: TCG - The Pokemon TCG Jungle Expansion pack is first released.
July: TCG - In Jungle set booster packs, Black Star promo cards are introduced for the first time.
July 10-11: TCG/Games - At the Mall of America in Bloomington, Minnesota, USA, over 44,000 kids attend a Pokemon GameBoy and Pokemon TCG Mall Tour event.
July 17: Anime - Pokemon: The Movie 2000 is released in Japan. For attending the movie, kids received an Ancient Mew TCG card; however, 'Nintendo' was incorrectly spelled as 'Nintedo', which was fixed in future runs. The movie reportedly cost twice as much to make as the first one did.
July 27: Games - Pokemon Snap is released in the US. It sells 2.21 million copies.
August - Toys R Us sells over $300 million worth of Pokemon merchandise in one week.
August 14 - A minister uses a blowtorch and a sword during a church service, claiming that Pokemon games and toys are only sugar-coated instruments of the occult and evil. Click here for the full story.
September: TCG - Duelist magazine offers readers a Wizards-stamped Pikachu card.
September 1 - Alakazam's Pokemon Cheats and Codes, now PokeZam, is opened as a small 1-page site on free host, Angelfire. The webmaster is inspired by great Pokemon sites like Psypoke, Bulbagarden and UPNetwork.
September 25: TCG - Two parents and their kids unsuccessfully try to sue Nintendo, claiming that their Pokemon cards "are turning them into pint-sized gamblers", forcing them to spend thousands of dollars to get rare cards.
October: TCG - At the Prototype League, Arcanine #6 promo, Pikachu #1 and Pre-release Aerodactyl are released.
October 1: Games - Pokemon Yellow, influenced by the Pokemon Anime, is released in the US. It sells 5.10 million copies.
October 15: TCG - The Pokemon TCG Fossil Expansion pack is released.
October 26: Music - The Pokemon Theme CD is released in the US.
October 27 - A Quebec teenager was stabbed in a school yard by a 12-year-old student after he tried to help his younger brother get his Pokemon cards back. Click here for the full story.
November: TCG - An eleven-year-old, who imports Pokemon cards from Japan, claims that his Golbat and Ditto cards had swastikas on them. He later finds out that the red mark was a "manji," which means good fortune and can also represent a Buddhist temple. Due to the bad press, Nintendo discontinues all cards with the symbol on them. Click here for the full story.
November 8 - Fast food chain, Burger King, releases 57 different Pokemon toys inside plastic PokeBalls; they are later recalled after young children choke on them.
November 9: Music - The Pokemon the First Movie Soundtrack CD is released in the US.
November 10: Anime - Pokemon: The First Movie makes its debut in the US, grossing over $50 million in its first five days, which was a record for an animated film at that time.
November 21: Games - Pokemon Gold and Silver, featuring 100 new Pokemon, are released in Japan. They go on to sell 6.91 million copies.
December: TCG - Kabuto Wizards stamps are offered to Top Deck magazine readers.
December: TCG - Pokemon TCG outsells Wizard's most successful card game, Magic: The Gathering.
December: TCG - As part of a promotion, Fruit Rollups include a gold-bordered Jungle Meowth inside select boxes.
December - Pokemon gets bad press over Pokemon-related crimes. A North Carolina man was charged with assault for allegedly punching a Burger King cashier after he did not get a Pokemon toy with his meal. At Philadelphia's Wilson Middle School, two boys punched and threw a trash can at an 11-year-old boy in a bathroom; the attackers ran off with two Pokemon cards and 75 cents and were later charged with robbery and suspended for five days. In Philadelphia, four children from one middle school were arrested for attacking other students to steal Pokemon cards. A Cape Coral 13-year-old is charged with burglarizing a neighbor's home and stealing 419 Pokemon cards. A Charlotte County firefighter is accused of shooting at a neighbor in a fight over their children's cards. A Polk County seventh-grader gets expelled for attacking a teacher who took away his cards.
December 10: TCG - Pokemon gets in trouble in Quebec, Canada due to only English cards being offered. Wizards promises to import cards from France to avoid being fined. Click here for the full story.

2000

January: TCG - To celebrate a year of the Pokemon TCG game in the US, Base Set 2 is released.
January 1: Music - The Europe-exclusive CD, Pokemon: Gotta Catch the Sound Original Soundtrack, is released.
January 5: TCG/Games/Anime - Carole B. Weatherford's famous article is published condemning Pokemon for being racist. This helped get Jynx recoloured from black to purple in future appearances in games, anime and TCG. For the full story, click here.
January 8: TCG - Mew cards are given to league members, as the new season of Pokemon TCG begins.
January 11: TCG/Games/Anime - Uri Geller, famed psychic, launches a lawsuit against Pokemon for $100 million due to Kadabra's Japanese name being Yungeller, because he says it hurt his reputation. In the end, he lost his lawsuit. Click here for the full story.
January 21: TCG - Two teenagers are charged with sexual assault for using Pokemon cards to lure at least eight young boys to a mobile home for sex.
February - A seven-year-old girl in Turkey jumps off a balcony believing she was a "super Pokemon", breaking her legs. Click here for the full story.
February: TCG - TopDeck magazines includes a Base Set 1 Jumbo Pikachu card.
February 8: Music - The Pokemon Worldk CD is released in the US.
March: TCG - TopDeck gives away a "Gold W" Wartortle Base Set 2 card.
March 6: Games - Pokemon Stadium is released in the US, with a Porygon TCG card; it goes on to sell 2.87 million copies.
April: TCG - Nintendo Power gives away Promo Mewtwo card.
April: TCG - Team Rocket Dark Charmeleon cards are given away in TopDeck.
April 11: Games - The Pokemon TCG GameBoy game is released in the US; all games include a Meowth card.
April 11: TCG/Games - The official guide to the Pokemon TCG GameBoy game is released and includes a Venusaur card.
April 19: TCG - The Pokemon TCG Team Rocket set is released in ths US.
May 9: Music - The Pokemon: The First Movie CD is released in the US.
June: TCG - An argument over Pokemon cards leads to the murder of a twelve-year-old boy.
June 24: Anime - Previously banned episode, Beauty and the Beach, airs on Kids WB! as a "lost episode" with the infamous James scene cut out.
July: TCG - Members of the Trading Card League receive an Eevee card.
July 7: TCG - Pokemon TCG Neo 2 is released in Japan.
July 8: Anime - Pokemon: The Movie 3 debuts in Japan, placing in third place for its opening weekend.
July 18: Music - The Pokemon the Movie 2000 Soundtrack CD is released in the US.
July 21: Anime - Pokemon: The Movie 2000 debuts in theaters in the US. During the first week, kids get an Ancient Mew card, while Moltres, Articuno and Zapdos promo cards were given out the next week.
July 22: TCG - The first ever Super Trainer Showdown, a TCG tournament hosted by Wizards, takes place in Long Beach, California, USA. The winners from each age bracket are Joseph Viray, Jack Savage, and Andrew Marshall.
August: TCG - Pokemon TCG Gym Heroes is released in the US.
August: TCG - The Pokemon Trading Card League gives away Team Rocket's Meowth and Misty's Seadra Gym Heroes cards.
August: TCG - TopDeck gives away "Gold W" Misty's Psyduck card from the Gym Heroes set.
August: TCG - Nintendo Power gives away Dark Persian cards with their magazine.
August 1 - After 30 weeks on top, Pokemon loses its number 1 ranking on the Lycos 50.
August 26-27: TCG - At the Hilton Hawaiian Village in Honolulu, the Tropical Mega Battle, an international TCG event, takes place. The winner is Jason Klaczynski, while the runner-up is Toshiya Tanabe.
September: TCG - The Pikachu World Collection (Pokemon TCG) is first introduced in Sydney, Australia, at the Summer Olympics.
September 21: Games - Pokemon Puzzle Challenge is released in Japan.
September 25: Games - Pokemon Puzzle League is a puzzle game for the Nintendo 64 console, is released in the US; the game was never released in Japan. It is based on the popular puzzle game Panel de Pon.
October: TCG - Pokemon TCG Gym Challenge is released in the US.
October: TCG - Pokemon TCG card, Psyduck, is given away through the Pokemon Trading Card League.
October: TCG - Nintendo Power gives away Sabrina's Abra cards.
October 14: Anime - Pokemon, the Johto Journeys, debuts on Kids WB!.
October 15: Games - Pokemon Gold and Silver are released in the US and end up selling an amazing 7.6 million copies in the US.
November 6: Games - Hey You, Pikachu! is released in the US and Canada.
November 14: Games - Pokemon Crystal, featuring the mobile phone component and the ability to catch Celebi, is released in Japan. It sells 2.10 million copies.
November 18: TCG - The second Super Trainer Showdown takes place in Secaucus, New Jersey, USA, in the Meadowlands Exposition Center. The winners are Jonathan Brooks, Rudy Rodriguez, and Tom Hanley.
November 23: TCG - In Japan, Neo 3 is released.
December: TCG - TopDeck gives away Brock's Vulpix with "Gold W".
December: TCG - The Trading Card League gives away Marill cards.
December 4: Games - Pokemon Puzzle Challenge is released in the US and Canada.
December 16: TCG - Neo Genesis is released in the US.

2001

January 15: TCG - Pokemon TCG Neo Genesis set is released.
January 23: Music - The Totally Pokemon CD is released in the US.
February: TCG - Pokemon TCG League issues Cleffa cards.
February 27: Music - The Pokemon Live! Original Cast Album CD is released in the US.
March: TCG - Pokemon TCG League releases Smeargle.
March 26: TCG/Games - Saudi Arabia officially bans Pokemon, saying that it promotes Zionism and involves gambling. Click here for the full story.
March 28: Games - Pokemon Stadium 2 is released for the Nintendo 64 in the US and goes on to sell 2.87 million copies.
March 28: Games - Pokemon TCG 2, a game that was never released outside of Japan, is released in the land of the rising sun.
April 3: Music - The Pokemon 3 The Ultimate Soundtrack CD is released in the US.
April 6: Anime - Pokemon: The Movie 3 debuts in theaters across the US with little advertising, resulting in lower box office sales. This is the last Pokemon film distributed by Warner Brothers.
April 6: TCG - In Japan, Neo 4 TCG card set is released.
April 14-June: TCG - The Pokemon TCG Tour begins.
May: Games - The Pokemon GameBoy Gross Roots tour begins.
June 2: TCG - Neo Discovery is released in the US.
June 23: TCG - The third annual Super Trainer Showdown takes place.
June 30: TCG - Pokemon TCG League Season 6 begins by giving away a Hitmontop card.
July 7: Anime - Pokemon 4Ever debuts in Japan. For going to the movie, you got a Kecleon card, a pencil board, a Celebi pendant, and a PokeBall pin.
July 17: TCG - In Japan, Pokemon VS is released.
July 29: Games - Pokemon Crystal is released in the US and goes on to sell 1.65 million copies.
August 4: TCG - At the beginning of TCG League Season 7, a Surfing Pikachu card is given away.
August 18: Anime - Pokemon: Johto Champions debuts on Kids WB!.
September: TCG - The Southern Islands TCG set is released in the US.
September 8: TCG - Pokemon TCG League Season 8 begins; Misdreavus and Flying Pikachu cards are given away.
October 9: Music - The Pokemon Christmas Bash CD is released in the US.
October 16: TCG - Pokemon TCG Neo Revelation is released in the US.
November 19: Games - Pokemon Center New York store opens in New York's Rockefeller Center. Located at 10 Rockefeller plaza, the center features interactive gaming environments, free activities and collectible Pokemon merchandise.
December 30: Games - Pokemon Mini, a stand-alone Pokemon handheld system, is released in the US.
December 1: TCG - The fourth annual Super Trainer Showdown is held at the San Diego Convention Center.
December 5: Anime - The direct-to-video special, Mewtwo Returns, is released in the US.
December 14: Games - Pokemon Mini is released in Japan.

2002

March: TCG - The Gym Challenges are held around the US to qualify for the first World Championships.
March 16: TCG - The East Coast Stadium Challenge is held in Secaucus, New Jersey, USA.
April 20: TCG - The Central Stadium Challenge is held in Rosemont, IL, USA.
June: TCG - A boy is found hanged after his teacher took his Pokemon cards.
June 8: TCG - The West Coast Stadium Challenge takes place in San Diego, CA, USA.
July 13: Anime - Pokemon Heroes is released in theaters across Japan.
August 2: TCG - The first Pokemon last-chance Grinder takes place where only the top eight players are invited to this single-elimination round.
August 3-4: TCG - The first World Championship takes place in Seattle, WA, USA; you were only invited if you had successfully won a Gym Challenge and the Grinder.
August 3: TCG - The first ever Professor Championship takes place, where the players have a chance to win a Pokemon Professor Jacket as well as a trip to the Pokemon World Championships.
August 26-27: TCG - Tropical Mega Battle takes place in Honolulu, Hawaii, USA.
September 14: Anime - Pokemon: Master Quest debuts on Kids WB!.
October 11: Anime - Pokemon 4Ever is released in theaters across the US. Shown in only 249 theaters across 20 cities, the movie came in 18th place on its opening weekend, earning $717,061.
November 21: Games - Pokemon Ruby and Sapphire, featuring two-on-two battles, are released in Japan. They go on to sell 5.09 million copies.
Late 2002 - Pokemon Live!, a musical stage show based off of Pokemon, tours the US.

2003

March-June: TCG - Throughout the US, the Super BattleZones tournaments are held.
March: TCG - Nintendo announces their plans to end their licensing agreement with Wizards to produce Pokemon cards, claiming that they aren't promoting it well enough since they manage so many card games.
March 18: Games - Pokemon Ruby and Sapphire are released in the US and Canada. They go on to sell 5.6 million copies.
May 16: Anime - Pokemon Heroes is released in theaters across the US. The film was only released in 196 theatres nationwide, earning $260,372 on its opening weekend, placing in 19th place in the box office.
May 30: Games - Pokemon Box: Ruby & Sapphire is released in Japan.
June 28: TCG - The second annual Professor Championship takes place in Columbus, OH, USA.
July 18: Games - Pokemon Channel is released in Japan.
July 19: Anime - Pokemon: Jirachi - Wish Maker is released in theaters across Japan. After only two days, 280,000 advanced tickets were sold. On its opening weekend, the movie opened in 309 theatres and earned $3,755,347, ranking in third.
July 25: TCG - The Team Play Championship takes place at the Gen Con gaming convention.
July 26: TCG - Wizards celebrates the fans through their Fan Appreciate Tournament at Gen Con.
August: TCG/Games - The Ruby and Sapphire Challenge takes place, where players test their skills at Pokemon TCG and GameBoy games.
August 1: Games - Pokemon Pinball: Ruby & Sapphire is released in Japan.
August 23: Games - Pokemon Pinball: Ruby & Sapphire is released in the US and Canada.
October 1: TCG - Wizards sues Nintendo over allegations of breach of contract and patent infringement, claiming that Nintendo was using Wizards-patented methods and technology to manufacture the Trading Card Game and hired two former Wizards executives who revealed trade secrets. Click here for the full story.
November 1: Anime - Pokemon: Advanced debuts on Kids WB!.
November 21: Games - Pokemon Colosseum is released in Japan. It goes on to sell 1.15 million copies.
December 1: Games - Pokemon Channel is released in the US and Canada.
December 29: TCG - Nintendo and Wizards resolve their dispute without legal action; terms of the deal are not disclosed.

2004

January 29: Games - Pokemon FireRed and LeafGreen, remakes of Pokemon Red and Blue, are released in Japan.
March: TCG - The Team Magma vs Team Aqua Pre-release takes place.
March 22: Games - Pokemon Colosseum is released in the US and Canada.
April: TCG - The Pokemon State Championships begin.
June: TCG - The Hidden Legends Pre-release takes place.
June 1: Anime - Pokemon: Jirachi - Wish Maker is released directly to video in the US and Canada, making it the first Pokemon film without a theatrical release.
June 26-27: TCG - The US National Championship takes place in Columbus, OH, USA.
July 10: TCG - In Arlington, TX, USA, the South Stadium Challenge takes place.
July 12: Games - Pokemon Box: Ruby & Sapphire is released in the US. It is only available through the New York Pokemon Center and its online store.
July 17: Anime/Games - Pokemon: Destiny Deoxys is released in theaters across Japan. Kids who ordered their movie ticket in advance had the opportunity to to receive the Aurora Ticket for Pokemon FireRed and LeafGreen, which allows them to catch Deoxys.
July 17: TCG - In Rockville, MD, USA, the East Coast Stadium Challenge is held.
July 17: TCG - The West Stadium Challenge takes place in Berkeley, CA, USA.
August: TCG/Games/Anime - Pokemon Rocks America takes place with stops all over the US. At the event, kids had the chance to play some carnival games and stage events for prizes, play and preview Gamecube and Gameboy Advance Pokemon games, do a little trading for rare Pokemon, preview the Pokemon Advanced TV Show and view clips of the Pokemon Hereos Movie, and play some TCG games and get a chance to get a Booster pack of EX: Dragon cards for taking part in a TCG Demo. The Aurora Ticket was also given out to allow players to obtain Deoxys in Pokemon FireRed and LeafGreen.
August 20: TCG - The Top 32 get in, as the Last Chance Grinder to get into the Worlds takes place.
August 21-22: TCG - The second annual World Championship and first since Pokemon USA ended their licensing agreement with Wizards, takes place in Orlando, FL, USA.
August 22: TCG - The FireRed/LeafGreen Pre-release takes place.
September 9: Games - Pokemon FireRed and LeafGreen are released in the US. They go to sell over 6 million copies worldwide.
September 11: Anime - Pokemon: Advanced Challenge debuts on Kids WB!.
September 16: Games - Pokemon Emerald, featuring a new battle arena, is released in Japan. It goes on to sell 3.57 million copies worldwide.
October 30: TCG - The Team Rocket Returns Pre-release begins.
November: TCG - The Pokemon City Championships takes place.
December 2: Games - Pokemon Dash is released in Japan.

2005

January 22: Anime - Pokemon: Destiny Deoxys debuts on TV on Kids WB!, making it the first time a Pokemon movie has aired on TV before it has been in theaters or on video.
February 5: TCG - The Deoxys Pre-release starts.
March: TCG - The Pokemon State Championships begin.
March 13: Games - Pokemon Dash is released in the US and Canada.
March 18 - Pokemon the Park, the world's first theme park featuring 12 attractions with more than 380 Pokemon, opens in Japan.
April 4: TCG - The Pokemon Regional Championships are held at Wizard World Philadelphia, where players receive an Emerald Mudkip card.
April 30: TCG - The Emerald Pre-release starts.
May: TCG - The Regional Championships take place.
May 1: Games - Pokemon Emerald is released in the US.
May 11: Anime - Pokemon Chronicles premiers in the UK on Toonami; this marks the first time that new episodes of the dub have aired in the UK before the US.
May 14: Games - Pokemon Center New York is closed down and replaced with the Nintendo World; however, the second floor is dedicated to Pokemon. At the grand opening, Mystic Tickets are given away to obtain Ho-Oh and Lugia in Pokemon FireRed, LeafGreen and Emerald.
June: TCG - Gym Challenges is released in the US.
June 30: TCG - The third annual Professor Championship takes place in Columbus, OH, USA.
July - The Pokecenter section, after over 5 years in Nintendo Power, is no longer a regular section, getting merged with several other sections.
July 1-2: TCG - The US National Championship takes place in Columbus, OH, USA.
July 16: Anime - Pokemon: Lucario and the Mystery of Mew is released in theaters across Japan. Kids who bought an advanced ticket were given a claim ticket that enabled them to capture Mew in Pokemon Ruby, Sapphire, Emerald, FireRed, and LeafGreen. The film was the second highest-grossing film in Japan during 2005, earning $36 million.
August 4: Games - Pokemon XD: Gale of Darkness, the GameCube sequel to Pokemon Colosseum, is released in Japan. It sells 1.25 million copies.
August 13: TCG - The Unseen Forces Pre-release begins.
August 18: TCG - The Last Chance Grinder to get a chance to battle in the Worlds takes place.
August 19-20: TCG - The third World Championship takes place in San Diego, CA, USA.
September 17: Anime - Pokemon: Advanced Battle debuts on Kids WB!.
September 17-October 22: TCG/Games/Anime - Pokemon Rocks America tours the US.
October 3: Games - Pokemon XD: Gale of Darkness is released in the US and Canada.
October 20: Games - Pokemon Trozei! is released in Japan.
October 23: TCG - The Delta Species Pre-release begins.
November 12-January 21: TCG - The City Championships take place.
November 17: Games - Pokemon Mystery Dungeon: Red Rescue Team & Blue Rescue Team are released in Japan.
December 19 - Pier Paolo Pandolfi of the Memorial Sloan-Kettering Cancer Center in New York and Pokemon USA come to an agreement over a lawsuit filed by Pokemon USA. The lawsuit was over the fact that in a January issue of the science journal, Nature, the cancer-causing POK erythroid myeloid ontogenic gene was called Pokemon. Click here for the full story.
December 23: Anime - 4Kids Entertainment and Pokemon USA announce that they have agreed not to renew the Pokemon representation agreement set to expire on December 31, 2005. Beginning in 2006, Pokemon USA's in-house licensing group will handle all Pokemon licensing outside of Asia. Click here for the full story.

2006

February 4: TCG - The Legend Maker Pre-release starts.
March 4-19: TCG - The State Championships take place.
March 6: Games - Pokemon Trozei! is released in the US and Canada.
March 22: Anime - The English voice actors for Pokemon learn that after 8 years, they won't be needed anymore and instead will be replaced with cheap sound-alikes. This causes an uproar in the Pokemon community and various campaigns are started to keep them, including public announcements from the voice actors urging fans to contact Pokemon USA. However, in the end, all efforts fail.
March 23: Games - Pokemon Ranger is released in Japan.
April 6: TCG - The Southern Plains Regional is held in Houston, TX, USA.
April 8-22: TCG - The Regional Championships are held.
April 22: TCG - The Holon Phantoms Pre-release begins.
April 25: Anime - The newly-merged CW Network cancels Pokemon for the 06-07 season.
April 28: Games - Pokemon Trozei!, renamed Pokemon Link!, is released in Europe.
April 29: Anime - The Mastermind of Mirage Pokemon special airs on Kids WB! to celebrate 10 years of Pokemon. This special marked the first time English-language production was handled by Pokemon USA and TAJ Productions rather than 4Kids Entertainment, who were responsible for all Pokemon licensing except video games outside of Asia from 1998 until 2005. As a result of this change, the English-language version of the special featured an all-new voice cast, replacing the 4Kids-based actors, many of whom had worked on the show for eight years. Some of the voice acting was so bad, that for the DVD release of the special, they were recast.
May - PokeZam, formerly The APCC, opens for business and takes the Pokemon community by storm. In only a few months, it goes from an unknown Pokemon site to one of the top sites in the Pokemon community.
May 6-June 11: TCG - The Gym Challenges takes place.
June 3: Anime - Pokemon Chronicles finally premiers in the US, on Cartoon Network as part of its Toonami block.
June 15: Anime - Cartoon Network acquires the rights, effectively renewing Pokemon from cancellation, for the 9th Pokemon season, Battle Frontier.
June 30: TCG - The fourth annual Professor Championship takes place in Columbus, OH, USA.
July 1-2: TCG - The US National Championships take place in Columbus, OH, USA with over 500 participants.
July 8: Anime - The final new episode of Pokemon airs on Kids WB!.
July 15: Anime/Games - Pokemon Ranger and the Temple of the Sea premiers in theaters across Japan. For fans who bought their tickets in advance, they will be able to play a special "W Mission" in Pokemon Ranger, where you can get Manaphy's egg and capture all four forms of Deoxys.
August 6: Games - The Pokemon Video Game National Championship take place in Bryant Park, New York City.
August 8: TCG/Games/Anime - To celebrate the 10th year of Pokemon, the Pokemon Party of the Decade takes place at Bryant Park in New York City, where the mayor of New York declares today, Pokemon Day. Wrestling legend and WWE Hall of Famer, Hulk Hogan, hosts the event.
August 12: TCG - The EX: Crystal Guardians Pre-release begins.
August 18: TCG - The Last Chance Grinder to make it to the Worlds takes place.
August 19-20: TCG - The fourth annual World Championship takes place in Anaheim, CA, USA.
September: Games - Mew is given out at Toys "R" Us stores in recognition of the release of the new movie, Pokemon: Lucario and the Mystery of Mew.
September 8: Anime - The Pokemon special, Pokemon Mystery Dungeon: Team Go-Getters Out of the Gate! airs on Cartoon Network.
September 8: Anime - The new season of Pokemon, Battle Frontier, debuts on Cartoon Network with the new voice actors.
September 18: Games - Pokemon Mystery Dungeon: Red Rescue Team & Blue Rescue Team are released in the US and Canada.
September 19: Anime - Pokemon: Lucario and the Mystery of Mew is released in the US and Canada.
September 28: Anime - The newest series of Pokemon begins airing in Japan and is set in the Sinnoh region, based on the new Diamond and Pearl games.
September 28: Games - Pokemon Diamond and Pearl are released in Japan. The games were earlier released in Japan in 2006. Pokemon Diamond and Pokémon Pearl have the most successful launch week of games in the Pokemon series in Japan, and the best launch week for any Nintendo DS game in Japan. Additionally, the games set the record of being the fastest selling Pokemon games in Japan within three months of sales.
September 30: Games - Toys R Us allows players to download Mew onto their Pokemon Ruby, Sapphire, Emerald, FireRed, or LeafGreen game paks.
October 3: Music - Pokemon X - 10 Years of Pokemon is released in the US on iTunes.
October 28: TCG - The Dragon Frontiers Pre-release begins.
October 30: Games - Pokemon Ranger is released in the US and Canada.
November 18-January 21: TCG - The City Championships take place.
December 14: Games - Pokemon Battle Revolution, the first Pokemon game on the Wii, is released in Japan.

2007


April 3: Anime - Pokemon Ranger and the Temple of the Sea is released in the US and Canada.

Thanks to Pokepedia for a lot of the TCG-related information.