sentences:  In the summer of 2011, Thunder returned to Division 1 of the English Basketball League, where they have remained ever since.Basketball has been played in the town of Worthing since 1984, when Worthing Bears called the Worthing Leisure Centre home (the Thunderdome).In 1999, to build on their popularity and boost commercial revenue the Bears decided to relocate to the nearby city of Brighton, where the franchise had originally started.