Kanto is the original Pokémon region featured in Pokémon Red and Green. It is the setting where players begin their journey, collect Gym Badges, and challenge the Pokémon League.
Kanto contains locations such as Pallet Town, Viridian City, Celadon City, and Lavender Town. Its geography and city layout became the template for the regions introduced in later generations.
The region’s name was borrowed from the real-world Kantō region of Japan, which includes Tokyo and surrounding prefectures. Pokémon’s fictional Kanto is not a direct map, but it uses recognizable thematic and geographic influences.
Johto, Hoenn, and Sinnoh are later regions. Johto first appeared in Pokémon Gold and Silver, Hoenn in Ruby and Sapphire, and Sinnoh in Diamond and Pearl.