Aug. 25, 1977 — Justice Department seeks to revoke U.S. citizenship, alleging Demjanjuk hid a past as Nazi death camp guard "Ivan the Terrible."

June 23, 1981 — U.S. District Judge Frank J. Battisti revokes citizenship.

Feb. 27, 1986 — Demjanjuk is extradited to Israel following 6th U.S. Circuit Court of Appeals' authorization.

April 25, 1988 — A three-judge Israeli panel sentences Demjanjuk to death after finding him guilty of war crimes and crimes against humanity.

June 30, 1988 — Demjanjuk appeals conviction.

June 30, 1993 — U.S. District Judge Thomas A. Wiseman, appointed to investigate Justice Department actions, says he found "substantial doubt" that Demjanjuk was "Ivan" but upholds extradition.

July 29, 1993 — Israeli Supreme Court rules 5-0 that Demjanjuk was not "Ivan the Terrible."

Aug. 6, 1993 — Appeals court rules U.S. government must allow Demjanjuk to return to United States while the court investigates his extradition.

Aug. 11, 1993 — Israeli attorney general recommends Demjanjuk be deported rather than tried for new Nazi war crimes.

Sept. 22, 1993 — Demjanjuk returns to United States.

Nov. 17, 1993 — Appeals Court rules government fraudulently withheld evidence; reverses its own order that authorized Demjanjuk's extradition in 1986.

Feb. 20, 1998 — U.S. District Judge Paul R. Matia overturns decision stripping Demjanjuk of his citizenship.

May 19, 1999 - U.S. Justice Department moves to revoke Demjanjuk's restored citizenship, alleging he was a guard at Nazi death and forced labor camps during World War II.

June 8, 2001 — Demjanjuk's second citizenship trial concludes.

Feb. 21, 2002 — Matia revokes Demjanjuk's citizenship, saying documentary evidence proved Demjanjuk was a Nazi guard and the case does not need eyewitness corroboration.