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

1968 – American troops kill between 200 and 500 Vietnamese civilians during the My Lai massacre (More info)

1935 – Adolf Hitler cancels the military clauses of the Treaty of Versailles (More info)

1985 – Associated Press reporter Terry Anderson is taken hostage in Beirut and held for 2,454 days (More info)

1988 – Lieutenant Colonel Oliver North and Vice Admiral John Poindexter are indicted on charges of conspiracy to defraud the United States (More info)

1995 – Mississippi formally ratifies the Thirteenth Amendment, becoming the last state to approve the abolition of slavery (More info)