Task: Text Categorization
Input (English): In July 1934, this city was the location of "Bloody Thursday" when the longshoremen's union fought against rivals for employment. In 1975, it was where Squeaky Fromme attempted to assassinate Gerald Ford. In 1945, a two-month (*) conference in this city designed the United Nations, and in 1978, Dianne Feinstein became its mayor when former politician Dan White killed George Moscone and Harvey Milk. For 10 points, name this city which, in 1989 and 1906, suffered large earthquakes.
Output (English): History