All videos in category 10 That Changed America (3 videos)

  • On July 16, 1939, at the insistence of Le� Szil�rd and Eugene Wigner, legendary physicist Albert Einstein signed a letter to President Franklin D. Roosevelt, personally warning the President of Nazi Germany’s scientific research of the atomic bomb. His letter to President Roosevelt would convince Roosevelt of the importance and the danger of this type of weapon in the hands of Adolf Hitler, and Roosevelt immediately created the Advisory Committee on Uranium.

  • Fought near Sharpsburg, Maryland, the Battle of Antietam (Battle of Sharpsburg to Southerners) was the first major battle of the American Civil War to take place in the north. The battle would leave more than 23,000 soldiers dead, its carnage impossible to visualize. The victory of the north gave President Abraham Lincoln the confidence to announce his Emancipation Proclamation, bringing an end to slavery in America.