1955 - Dr. Jonas Salk invented the medicine to prevent polio.
1801: William Carey was appointed Professor of Bengali language at Fort William College of Calcutta.
1861: Beginning of Civil War in America. Eleven states of the South, under the leadership of Jefferson Davis, declared independence from the United States with the Declaration of Independence.
1885: Birth of famous historian Rakhaldas Banerjee who discovered Mohenjodaro
1927: The British cabinet supported giving voting rights to women.
1973: Sudan made its constitution.
1978: India's first double-decker train departed on its maiden journey from Victoria Terminal in Bombay to Pune.