Event:
U.S. sailor Michael L. Walker arrested for spying for U.S.S.R.
More Notable Events on May 22:
1990 Microsoft releases Windows 3.0
1972 U.S. president Nixon begins visit Moscow
1943 1st jet fighter is tested
1933 Loch Ness Monster is 1st reportedly sighted by John Mackay
1906 Wright Brothers patent the aeroplane
