Here’s a look at some interesting events that took place on this day in history:

1792 – The New York Stock Exchange is formed (More info)

1875 – The first Kentucky Derby is held at Churchill Downs in Louisville, Ky. (More info)

1954 – The Supreme Court rules against school segregation in Brown v. Board of Education (More info)

1973 – Televised hearings about the Watergate affair begin in the US Senate (More info)

2004 – Massachusetts becomes the first US state to legalize same-sex marriage (More info)