1783 – Britain evacuates New York city, its last military position in United States

1867 – Alfred Nobel patents dynamite

1943 – U-600 sinks in Atlantic Ocean

1960 – First atomic reactor for research & development, Richland, Wa

1969 – John Lennon returns OBE to protest against UK’s support for Vietnam War

1976 – Viking 1 radio signals from Mars help prove the general theory of relativity

1983 – Soyuz T-9 returns to Earth, 149 days after take-off