On this day: May 17

POSTED: 01:12 PM PDT May 16, 2013    UPDATED: 11:00 PM PDT May 16, 2013 
Gay marriage, brides on wedding cake

St. Louis nearly burns to the ground, the first Kentucky Derby is held, the Supreme Court strikes down segregated schools, the Senate Watergate Committee begins televised hearings, and same-sex marriages begin in Massachusetts, all on this day.