On this day in 1941, Adolf Hitler ordered the official termination of the T4 euthanasia program of the mentally ill and disabled, although killings continued in secret for the remainder of the war.
On this day in 1991, Mikhail Gorbachev resigned as head of the Communist Party of the Soviet Union.
On this day in 1991, Ukraine declared itself independent from the Soviet Union.
On this day in 2012 , American cyclist Lance Armstrong was banned from all competitions and stripped of his seven Tour de France titles by the United States Anti-Doping Agency for using illicit performance-enhancing drugs.