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

1770 – Five Americans are killed by British troops in an event that would later become known as the Boston Massacre (More info)

1872 – George Westinghouse patents the air brake (More info)

1946 – Winston Churchill first uses the phrase “Iron Curtain” during a speech at Missouri’s Westminster College (More info)

1953 – After 29 years in power, Soviet dictator Josef Stalin dies at age 73 (More info)

1963 – Patsy Cline, Cowboy Copas, and Hankshaw Hawkins are killed in a plane crash (More info)