Event:
Data from the 1940 U.S. census is released including information on 132 million people
More Notable Events on April 2:
1982 Argentina seizes Malvinas, also known as the Falkland Islands
1978 Velcro was 1st put on the market
1935 Sir Watson-Watt patents RADAR
1921 Albert Einstein lectures in New York City on his new theory of relativity
1877 1st Easter egg roll held on White House lawn
