Event:
The most active volcano in Iceland, Grimsvotn, erupts and triggers 50 small earthquakes
More Notable Events on May 21: 1982 British troops lands on Falkland Islands
1945 Lauren Bacall and Humphrey Bogart wed
1927 Lindburgh lands in Paris, after 1st solo air crossing of Atlantic
1918 House of Representatives passes amendment allowing women to vote
1881 American Red Cross founded by Clara Barton
