Ra Dickerson was 14 years old when World War II: Nagasaki is devastated when an atomic bomb, Fat Man, is dropped by the United States B-29 Bockscar. Thirty-five thousand people are killed outright, including 23,200-28,200 Japanese war workers, 2,000 Korean forced workers, and 150 Japanese soldiers. Nagasaki is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan. The city's name, 長崎, means "long cape" in Japanese. Nagasaki became a centre of colonial Portuguese and Dutch influence in the 16th through 19th centuries, and the Hidden Christian Sites in the Nagasaki Region have been recognized and included in the UNESCO World Heritage List. Part of Nagasaki was home to a major Imperial Japanese Navy base during the First Sino-Japanese War and Russo-Japanese War.
Ra Dickerson was 21 years old when Jonas Salk announced the successful test of his polio vaccine on a small group of adults and children (vaccination pictured). Jonas Edward Salk was an American medical researcher and virologist. He discovered and developed one of the first successful polio vaccines. Born in New York City, he attended New York University School of Medicine, later choosing to do medical research instead of becoming a practicing physician. In 1939, after earning his medical degree, Salk began an internship as a physician scientist at Mount Sinai Hospital. Two years later he was granted a fellowship at the University of Michigan, where he would study flu viruses with his mentor Thomas Francis, Jr.
Ra Dickerson was 33 years old when Thirty-five hundred United States Marines are the first American land combat forces committed during the Vietnam War. The United States Marine Corps (USMC), also referred to as the United States Marines, is a branch of the United States Armed Forces responsible for conducting amphibious operations with the United States Navy. The U.S. Marine Corps is one of the four armed service branches in the U.S. Department of Defense (DoD) and one of the seven uniformed services of the United States.