What happened 21 April in United States of America

An April 21, 1791, news report of the April 15 dedication ceremony for the first boundary stone (the south cornerstone) stated that it was Andrew Ellicott who "ascertained the precise point from which the first line of the district was to proceed". The news report did not mention Banneker's name.

Early in the Second World War, John Maynard Keynes of the British Treasury and Harry Dexter White of the United States Treasury Department independently began to develop ideas about the financial order of the postwar world. After negotiation between officials of the United States and United Kingdom, and consultation with some other Allies, a "Joint Statement by Experts on the Establishment of an International Monetary Fund," was published simultaneously in a number of Allied countries on April 21, 1944.

On April 21, senior police investigators held a press conference to announce having apprehended about 20 suspects in the attacks of a total of nine people in Central Park two nights before, and began to offer their theory of the attack and rape of the female jogger. Her name was withheld as a victim of a sex crime. The police said up to 12 youths were believed to have attacked the jogger.

Zoom was founded by Eric Yuan, a former corporate vice president for Cisco Webex.