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

1866 – President Andrew Johnson formally declares an end to the Civil War (More info)

1920 – The National Football League is founded (More info)

1940 – British Prime Minister Winston Churchill makes the fourth of his famous wartime speeches, this one containing the line, “Never was so much owed by so many to so few” (More info)

1968 – The Soviet Union and other Warsaw Pact nations invade Czechoslovakia (More info)

1977 – NASA launches the Voyager 2 spacecraft, which is now more than seven billion miles from Earth and continues its exploration (More info)