Complex sentence: Jessie, James, and Meowth have had their histories altered several times over the course of the series.they visited Pokémon-Tech school, joined a bicycle gang in Sunnytown.
Split into simpler sentences: Jessie, James, and Meowth have had their histories altered several times over the course of the series. They visited Pokémon-Tech school, joined a bicycle gang in Sunnytown.