To celebrate the the first anniversary of Pokemon Go, Niantic and the Pokemon Company International have revealed that the first Legendary Pokemon Raid battle will be in Grant Park during Pokemon Go Fest Chicago on July 22nd. During Pokemon Go Fest, trainers around the world get to participate in the Pokemon Go Fest Challenge Window, where if they catch enough Pokemon, a Legendary Pokemon will appear at Grant Park during a Raid Battle. If the players are successful, that Legendary Pokemon will appear around the world globally during Raid Battles starting July 23rd, 2017.
The Pokemon Go team promises that this isn’t the only Legendary Pokemon and that there are many to come in the future. For more information, visit the Pokemon Go website.