February 21 Traditional Cache
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Size: 
(micro)
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February 21st
According to Wikipedia and other sources, on February 21st:
1848 – Karl Marx and Friedrich Engels publish The Communist Manifesto.
1878 – The first telephone book is issued in New Haven, Connecticut.
1885 – The newly completed Washington Monument is dedicated.
1925 – The New Yorker publishes its first issue.
1947 – In New York City, Edwin Land demonstrates the first "instant camera", the Polaroid Land Camera, to a meeting of the Optical Society of America.
1958 – The Peace symbol, commissioned by Campaign for Nuclear Disarmament in protest against the Atomic Weapons Research Establishment, is designed and completed by Gerald Holtom.
1965 – Malcolm X is assassinated at the Audubon Ballroom in New York City by members of the Nation of Islam.
Additional Hints
(No hints available.)