May 6

1840: Adhesive postage stamps were first sold in Great Britain. 1887: Coca-Cola was trademarked. 1916: The first U.S. radio telephone ship-to-shore conversation was made between the Navy Department and AT&T. 1929: Nobel Laureate Paul Lauterbur, who was the co-developer of magnetic resonance imaging, was born. 1937: The Hindenburg caught fire while docking at the Lakehurst Naval Air Station, NJ, killing 36 of the 97 people onboard. 1941: Bob Hope gave his first USO show at California's March Field. 1954: Roger Bannister, a 25-year-old British medical student, became the first man to run a mile in less than 4 minutes. 1955: West Germany was admitted into NATO. 1960: Republican President Eisenhower signed the Civil Rights Act of 1960. 1962: The first nuclear warhead fired from a Polaris submarine was launched. 1963: Theodore von Kármán, who designed the Bell X-1 supersonic airplane, died. 1994: The Queen and France's President Mitterrand formally open the Channel Tunnel during two elaborate ceremonies in France and Britain.