On March 21st, 1928, Charles Lindbergh was presented a Medal of Honor for his first trans-Atlantic flight.

On March 20th, 1916, Albert Einstein published his theory of relativity.

On March 19th, 1915, Pluto was photographed for the first time, but not recognized as a planet.

On March 18th, 1766, the British government repealed the Stamp Act.

On March 17th, 1941, the the National Gallery of Art was opened by Franklin D. Roosevelt.

On March 16th, 1850, Nathaniel Hawthorne's novel "The Scarlet Letter" was first published.

On March 15th, 44 B.C., Julius Caesar was assassinated by Brutus and other Roman senators.

On March 14th, 1794, Eli Whitney was granted a patent for his cotton gin.

On March 13th, 1969, the Apollo 9 returned to Earth after testing the Lunar Module.

On March 12th, 1933, Franklin Delano Roosevelt delivered the first of his Fireside Chats.

On March 11th, 1861, the constitution of the Confederate States of America was adopted.

On March 10th, 1876, Alexander Graham Bell made the famous phone call: "Mr. Watson, come here, I want to see you."

On March 9, 1959, the Barbie doll debuted.

On March 8th, 1957, Egypt reopened the Suez Canal.

On March 7th, 1876, Alexander Graham Bell was granted a patent for the telephone.

On March 6th, 1836, the Battle of the Alamo ended with the surrender of the volunteers defending the fort.

On March 5th, 1770, five Americans were killed in the Boston Massacre, an event which would help spur the Revolutionary War five years later.

On March 4th, 1801, Thomas Jefferson became the first President of the United States to be inaugurated in Washington, D.C.

On March 3rd, 1931, "The Star-Spangled Banner" was adopted as the national anthem of the United States.

On March 2nd, 1917, Alexander II of Russia abdicated in favor of his brother Michael.