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Shambel Abebe Bikila (; August 7, 1932 – October 25, 1973) was an Ethiopian marathon runner who was a back-to-back Olympic marathon champion. He was the first Ethiopian Olympic gold medalist, winning his first gold medal at the 1960 Summer Olympics in Rome while running barefoot. At the 1964 Tokyo Olympics, he won his second gold medal, making him the first athlete to successfully defend an Olympic marathon title. In both victories, he ran in world record time.
Born in Shewa, Abebe moved to Addis Ababa around 1952 and joined the 5th Infantry Regiment of the Ethiopian Imperial Guard, an elite infantry division that safeguarded the emperor of Ethiopia. Abebe served in the Kagnew Battalion during the Korean War.
Enlisting as a soldier before his athletic career, he rose to the rank of shambel (captain). Abebe participated in a total of sixteen marathons. He placed second on his first marathon in Addis Ababa, won twelve other races, and finished fifth in the 1963 Boston Marathon. In July 1967, he sustained the first of several sports-related leg injuries that prevented him from finishing his last two marathons. Abebe was a pioneer in long-distance running. Mamo Wolde, Juma Ikangaa, Tegla Loroupe, Paul Tergat, and Haile Gebrselassie—all recipients of the New York Road Runners' Abebe Bikila Award—are a few of the athletes who have followed in his footsteps to establish East Africa as a force in long-distance running. His birthday coincided with the 1932 Los Angeles Olympic marathon. Abebe was the son of Wudinesh Beneberu and her second husband, Demissie. During the Second Italo-Ethiopian War (1935–1937), his family was forced to move to the remote town of Gorro. By then, Wudinesh had divorced Abebe's father and married Temtime Kefelew. During the mid-1950s, Abebe ran from the hills of Sululta to Addis Ababa and back every day. In 1956, Abebe finished second to Wami Biratu in the Ethiopian Armed Forces championship. According to biographer Tim Judah, his entry in the Olympics was a "long planned operation" and not a last-minute decision, as was commonly thought.
Abebe was 27 when he married 15-year-old Yewebdar Wolde-Giorgis on March 16, 1960.