1. 1793: Louis XVI, the King of France, was executed by guillotine during the French Revolution.

2. 1924: Vladimir Lenin, the leader of the Russian Revolution and the first head of the Soviet state, died.

3. 1976: The first commercial Concorde flight took place, with British Airways and Air France simultaneously inaugurating their Concorde services to Bahrain.

4. 2003: The United States Department of Homeland Security officially began operation.

5. 2017: The Women’s March, a global protest advocating for women’s rights and other social issues, took place in various cities around the world, including Washington, D.C., in response to the inauguration of President Donald Trump.