1675 - German mathetician Gottfried Wilhelm Leibniz demonstrates integral calculus for the first time to find the area under the graph of y = f(x) function. Yes, I know Math!?! The reason I became a History major was in part due to a total lack of Math. However we don't have to use the formula we just have to know it exists.

1745 - Bonnie Prince Charlie's army enters England.
1887 - Labor Activists were hanged in Illinois after being convicted of being connected to a bombing that killed eight police officers.
1889 - Washington became the 42nd state of the United States.
1918 - Armistice signed by the Allies and Germany comes into effect and World War I hostilities end at 1100, "the eleventh hour of the eleventh day of the eleventh month". While this "War to end all wars" did not accomplish this goal it did have lasting effects. It ended the "Old order" in Europe and redrew the map of that continent. It was the birth of the Soviet Union. It propelled the United States onto the stage as a World power. Sadly, it also sowed the seeds of the next war and established an environment in Germany that nurtured those poisoned philosophies that gave birth to the NAZI Party.
1918 - Poland was reestablished shortly after the surrender of Germany.
1920 - The body of an unknown British soldier was buried in Westminster Abbey. The service was recorded with the first electronic recording process developed by Lionel Guest and H.O. Merriman.
1921 - The Tomb of the Unknowns was dedicated at Arlington Cemetery in Virginia by U.S. President Harding.
1942 - During World War II, Germany completed its occupation of France.
1966 - The U.S. launched Gemini 12 from Cape Kennedy, FL. The craft circled the Earth 59 times before returning.
1993 - In Washington, DC, the Vietnam Women's Memorial was dedicated to honor the more than 11,000 women who had served in the Vietnam War.