Pokémon is the story of Ash Ketchum, a young boy from Pallet Town who receives his first Pokémon at age 10, from Professor Oak, and sets out to be the greatest Pokémon trainer ever! Ash has a rival, Gary, who he use to be friends with when they were younger. Because Ash got to Professor Oak's laboratory late, he could not get the Pokémon he wanted, a Squirtle, Ash ends up with Pikachu.

Throughout the seasons Ash has meet new friends like Misty, Brock, Tracey, May and Max and has participated in many new Pokemon Leagues. He has also caugh more than 40 Pokemon and Ash is right now journey in the Sinnoh region along with Brock, and new girl Dawn. Ash continues to collect badges, while Dawn competes in contests.

(Show image is 1 of 6 wallpapers you could've received by getting a high enough score in the Gotta Know 'em All Quiz on CartoonNetwork.com)

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Pokemon Title List:

Pokemon (Seasons 1-2)

Pokemon: Johto Journeys (Season 3)

Pokemon: Johto League Champions (Season 4)

Pokemon: Master Quest (Season 5)

Pokemon: Advanced (Season 6)

Pokemon: Advanced Challenge (Season 7)

Pokemon: Advanced Battle (Season 8)

Pokemon: Battle Frontier (Season 9)

Pokemon: Diamond & Pearl (Season 10)

Pokemon: Diamond and Pearl: Battle Dimension (Season 11)

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Pokemon Movie Titles:

Pokemon the First Movie: Mew Vs. Mewtwo

Pokemon 2002: The Power of One

Pokemon 3 the Movie: The Legend of the Unown

Pokemon: Return of Mewtwo

Pokemon 4 Ever

Pokemon Heroes

Pokemon Jirachi Wishmaker

Pokemon Destiny Deoxys

Pokemon Lucario and the Mystery of Mew

Pokemon Ranger

Pokemon: Rise of Darkrai

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Pokemon Regions:
Kanto Region (Season 1, 8-9)
Orange Islands (Season 2)
Johto Region (Season 3-5)
Hoenn Region (Season 6-8)
Sinnoh Region (Season 10+)

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Starter Pokemon:

Kanto Region - Bulbasaur, Charmander, Squirtle, Pikachu

Orange Islands - Unknown

Johto Region - Chikorita, Cyndaquil, Totodile

Hoenn Region - Treechko, Torchic, Mudkip

Sinno Region - Turtwig, Chimchar, Piplup

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Pokemon Professor List:

Kanto Region - Professor Oak

Orange Islands - Professor Ivy

Johto Region - Professor Elm

Hoenn Region - Professor Birch

Sinnoh Region - Professor Rowan

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Pokemon Gym leaders:
Kanto Region

Pewter City - Brock

Cerulean City - Misty

Vermillion City - Lt. Surge

Celadon City - Erika

Saffron City - Sabrina

Fuscha City - Koga

Cinnabar Island - Blaine

Veridian City - Giovanni

Orange Islands:

Mikan Island - Cissy

Navel Island - Danny

Trovita Island - Rudy

Kumquat Island - Luana

Johto Region:

Violet City - Falkner

Azelea Town - Bugsy

Golden Rod City - Whitney

Ecruteak City - Morty

Cianawood City - Chuck

Olivine City - Jasmine

Mahogany Town - Pryce

Blackthorn City - Clair

Hoenn Region:

Rustboro City - Roxanne

Dewford Town - Brawly

Mauville City - Wattson

Lavaridge Town - Flannery

Petalburg City - Norman

Fortree City - Winona

Mossdeep City - Liza & Tate

Sootopolis City - Juan or Wallace

Battle Frontier Brains (Though not Gym Leaders they deserve the mention):

Battle Factory - Noland

Battle Arena - Greta

Battle Dome - Tucker

Battle Pike - Lucy

Battle Palace - Spencer

Battle Pyramid - Brandon

Battle Salon - Anabel

Sinnoh Region:

Oreburgh City - Roark

Eterna City - Gardenia

Veilstone City - Maylene

Pastoria City - Wake

Hearthome City - Fantina

Canalave City - Byron

Snowpoint City - Candice

Sunyshore City - Volkner

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Other Pokemon Shows:
Pokemon Chronicles