On this day in 1934, as part of New Deal, US President Franklin D. Roosevelt signed the Securities Act of 1933 into law, establishing the US Securities and Exchange Commission.
On this day in 1944, D-Day, code named Operation Overlord, commenced with the landing of 155,000 Allied troops on the beaches of Normandy in France. It is the largest amphibious military operation in history.
On this day in 1984, Tetris, one of the best-selling video games of all time, was released.