In the United States, trolley parks, which started in the 19th century, were picnic and recreation areas along or at the ends of streetcar lines, created by the streetcar companies to give people a reason to use their services on weekends.
Trolley parks were picnic and recreation areas along or at the ends of streetcar lines. This was in the United States. Streetcar lines were created by the streetcar companies. This was to give people a reason to use their services on weekends. Trolley parks started in the 19th century.