In Pokemon Pearl when the events?

Pokémon Pearl takes place approximately 100 years after the events of Pokémon Diamond and Pearl. This is confirmed in the games themselves, with various characters mentioning the "old days" and "legends" of the Sinnoh region, hinting at a significant time gap.

Here's a breakdown of the timeline:

* Pokémon Diamond and Pearl: The original games where you journey through Sinnoh, defeat Team Galactic, and become the Champion.

* Pokémon Platinum: A reimagining of Diamond and Pearl with a slightly different story, adding the Distortion World and Giratina.

* Pokémon Brilliant Diamond and Shining Pearl: Remakes of the original Diamond and Pearl games with updated graphics and gameplay.

* Pokémon Legends: Arceus: A prequel to the Diamond and Pearl series, set in the Sinnoh region during its ancient past when humans and Pokemon co-existed more primitively.

* Pokémon Black and White: The next generation of games after Diamond and Pearl, introducing the Unova region and a new story.

Therefore, Pokémon Pearl falls chronologically between Pokémon Platinum and Pokémon Black and White.