On March 30th, 1867, Secretary of State William H. Seward purchased Alaska for $7.2 million, a move referred to by the media as "Seward's Folly."

On March 29th, 1871, the Royal Albert Hall was opened by Queen Victoria.

On March 28th, 1979, a failure in a cooling system at Three Mile Island resulted in contamination of the water from nuclear waste.

On March 27th, 1513, Ponce de Leon sighted America for the first time.

On March 26th, 1958, the United States army launched Explorer III.

On March 25th, 1655, Christiaan Huygens discovered Titan, Saturn's largest moon.

On March 24th, 1989, the Exxon-Valdez oil spill occured in Alaska's Prince William Sound.

On March 23rd, 1775, Patrick Henry delivered his famous "Give me liberty or give me death" speech at St. John's Church in Richmond, VA.

On March 22nd, 1894, the first Stanley Cup playoffs began.

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On March 18th, 1766, the British government repealed the Stamp Act.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