1789 – John Adams was sworn in as the first U.S. Vice President.
1836 – General Sam Houston defeated Santa Anna at the Battle of San Jacinto. This battle decided the independence of Texas.
1856 – The Mississippi River was crossed by a rail train for the first time (between Davenport, IA, and Rock Island, IL).
1914 – U.S. Marines occupied Vera Cruz, Mexico. The troops stayed for six months.
1972 – Apollo 16 astronauts John Young and Charles Duke explored the surface of the moon.
1998 – Astronomers announced in Washington that they had discovered possible signs of a new family of planets orbiting a star 220 light-years away.