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Sunnyvale is one of the few U.S. cities to have a single unified Department of Public Safety where all personnel are trained as firefighters and police officers and can respond to emergencies in either capacity.
In 1906, Joshua Hendy Ironworks relocated to Sunnyvale.
Sunnyvale is a subject of interest for Buffy the Vampire Slayer and Angel_(TV_series) fans, as "Sunnydale" is the name of the show's fictional town.