1. Armistice Day: November 11 is celebrated as Armistice Day in Ohio to commemorate the end of World War I. The armistice between the Allied powers and Germany was signed on November 11, 1918, marking the end of the four-year-long war.

2. Ohio Veterans Day Parade: The Ohio Veterans Day Parade is held every year on November 11 in downtown Cincinnati. It is one of the largest parades in the country honoring veterans and active military personnel.

3. Ohio National Guard: The Ohio National Guard was formed on November 11, 1803, by an act of the Ohio General Assembly. Today, the Ohio National Guard is one of the largest and most active National Guard units in the country.

4. Neil Armstrong: Neil Armstrong, the first human to step on the moon, was born on November 11, 1930, in Wapakoneta, Ohio. Armstrong was a graduate of Purdue University and served as a Navy pilot before becoming an astronaut.

5. Ohio State Birthday: Ohio's statehood was established on March 1, 1803, but it was not until November 11, 1953, that the Ohio State Legislature voted to celebrate Statehood Day on November 11. The day is celebrated with parades, fireworks, and other festivities throughout the state.