Scranton became a borough in 1856. In 1866, Scranton was made a city when Hyde Park and Providence joined together with the Borough of Scranton. The city had 35,000 people living in it. In 1866, a streetcar system was built. It was the first in the United States. Scranton got the nickname "The Electric City" because of this. In the late 1890s, Scranton had several minor league baseball teams.