Thornhill's location along Yonge Street, being a major transportation route, proved to be beneficial to the community's growth throughout much of the twentieth century. The implementation of an electric street railway along Yonge Street in 1898 travelling to Kleinburg, Georgina, King and Toronto meant that, for the first time, it was possible for people to reside in Thornhill and work in Toronto. By the 1920s, the prevalence of the automobile further facilitated travel along Yonge Street. [Courtesy of Wikipedia]