1780    American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.

1917    World War I: At Vincennes outside of Paris, Dutch dancer Mata Hari is executed by firing squad for spying for the German Empire.

1951    Ethel and Julius Rosenberg are convicted of conspiracy to commit espionage.

1951    Ethel and Julius Rosenberg are sentenced to death for performing espionage for the Soviet Union.

1960    Francis Gary Powers is charged with espionage resulting from his flight over the Soviet Union.

1960    The head of the Physics Department at the Israel Institute of Technology, Kurt Sitte, is arrested for espionage.

1960    Cold War: in Moscow, downed American U-2 pilot Francis Gary Powers is sentenced to ten years imprisonment by the Soviet Union for espionage.

1963    The British Government admits that former diplomat Kim Philby had worked as a Soviet agent.

1968    The crew of the USS ''Pueblo'' is released by North Korea after being held for 11 months on suspicion of spying.

1972    The ''Washington Post'' reports that White House Chief of Staff H.R. Haldeman is the fifth person to control a secret cash fund designed to finance illegal political sabotage and espionage during the 1972 presidential election campaign (see also Watergate scandal).

1985    United States Navy intelligence analyst Jonathan Pollard is arrested for spying after being caught giving Israel classified information on Arab nations. He is subsequently sentenced to life in prison.

1986    Jonathan Pollard pleads guilty to espionage for selling top secret United States military intelligence to Israel.

1986    United States Navy officer Jerry A. Whitworth is sentenced to 365 years imprisonment for espionage for the Soviet Union.