From Historynet: Today in History March 20

1413          Henry IV of England  is succeeded by his son Henry V .

1739          In India, Nadir Shah of Persia  occupies Delhi and takes possession of the Peacock throne.

1760          The Great Fire of Boston destroys 349 buildings.

1792          In Paris, the Legislative Assembly approves the use of the guillotine.

1815          Napoleon Bonaparte  enters Paris and begins his 100-day rule.

1841          Edgar Allan Poe's  The Murders in the Rue Morgue, considered the first detective story, is published.

1852         Harriet Beecher Stowe's  Uncle Tom's Cabin is published.

1906          Russian Army officers mutiny at Sevastopol.

1915          The French call off the Champagne offensive on the Western Front.

1918          The Bolsheviks of the Soviet Union ask for American aid to rebuild their army.

1922          President Warren G. Harding  orders U.S. troops back from the Rhineland.

1932          The German dirigible, Graf Zepplin, makes the first flight to South America on regular schedule.

1939          President Franklin D. Roosevelt  names William O. Douglas  to the Supreme Court.

1940          The British Royal Air Force conducts an all-night air raid on the Nazi airbase at Sylt, Germany.

1943          The Allies attack 

Field Marshall Erwin Rommel's  forces on the Mareth Line in North Africa.

1965          President Lyndon B. Johnson  orders 4,000 troops to protect the Selma-Montgomery civil rights marchers.

1969          Senator Edward Kennedy  calls on the United States to close all bases in Taiwan.

1976          Patty Hearst  is convicted of armed robbery.

1982          U.S. scientists return from Antarctica with the first land mammal fossils found there.

1987          The United State approves AZT, a drug that is proven to slow the progress of AIDS.