Prime Minister: John Russell, 1st Earl Russell (Whig)
May 1
The Great Exhibition of the Works of Industry of All Nations in the
Crystal Palace, Hyde Park, London is opened by Queen Victoria
(it runs until October 15).
May 15
The first Australian gold rush is proclaimed, although the discovery
had been made three months earlier.
Mid-May to mid-July
Great Flood of 1851: Extensive flooding sweeps across the Midwestern
United States. The town of Des Moines is virtually washed away,
and many rainfall records hold for 160 years.
June 2
Maine passes the first state-wide prohibition law in the United States.
June 21
The Immortal Game, a famous chess match, is played between Adolf
Anderssen and Lionel Kieseritzky, during a break in the first
international tournament, held in London.