Find out what happened on December 31 in this video of This Day in History. On this day, Thomas Edison gave the first demonstration of his newly developed lamp in 1879. President Harry Truman also gave an important message. Truman told the United States that the hostilities of the Second World War had come to an end. On December 31, 2004, the world saw the unveiling of the new tallest building, the Burj Dubai. Most importantly, in 1999 the United States gave control over the Panama Canal to Panama. The construction of the canal cost the United States $350 million and 30,000 lives. However, Panamanian nationalists wanted their nation in control of it. This transaction strengthened the relations between the United States and Latin America.
Samuel Sandoval, one of the last original Navajo Code Talkers, recalls enlisting in the Marines at 18 to help create an unbreakable code. Using their sacred, unwritten language, he and his brothers-in-arms forged a secret weapon that never fell to the enemy.
Historian Zonnie Gorman shares the legacy of the Navajo Code Talkers, including her father, Carl. These heroes used their native language to help secure every major Pacific battle. As Major Connor noted, without them, Iwo Jima would never have been taken.