May 2, 2011- Osama bin Laden, who planned the September 11, 2001 attack on America, was killed by US Special Operation Forces when he was in his secret bunker in Afghanistan.

May 6, 1527- The Renaissance ended when German troops sacked Rome, took the Pope as their captive, and looted pieces of artwork.

May 7, 1915- The Lusitania was sunk by German U-boats off the coast of Ireland. This was the main factor for the US to get involved with WWI, because 114 passengers were American.

May 14, 1804- Lewis and Clark started their expedition to the west coast of North America. They returned to St. Louis two years later, traveling 6,000 miles.

May 17, 1792- A few dozen stock brokers established the New York Stock Exchange. They started doing it either in a coffeehouse or under a tree on wall street.

May 20, 1932- Amelia Earhart became the first women to fly over the Atlantic Ocean solo. Five years after this, she disappeared and was never found.

May 29, 1435- Constantinople, now called Istanbul, was sacked by Turks, which ended the Byzantine Empire.

May 30, 1672- Peter the Great, who westernized and unified Russia, was born on this day.