By The Associated Press
                - Today is Tuesday, April 20, the 110th day of 1999. There are 255
                  days left in the year.

                - On April 20, 1949, scientists at the Mayo Clinic announced they had
                  succeeded in synthesizing a hormone found to be useful in treating
                  rheumatoid arthritis; the substance was named "cortisone."
                - In 1812, the fourth vice president of the U.S., George Clinton, died
                  in Washington at age 73, becoming the first vice president to die
                  while in office.
                - In 1836, the Territory of Wisconsin was established by Congress.
                - In 1889, Adolf Hitler was born in Braunau, Austria.
                - In 1902, scientists Marie and Pierre Curie isolated the radioactive
                  element radium.
                - In 1940, RCA publicly demonstrated its new and powerful electron
                  microscope.
                - In 1945, during World War II, allied forces took control of the
                  German cities of Nuremberg and Stuttgart.
                - In 1968, Pierre Elliott Trudeau was sworn in as prime minister of
                  Canada.
                - In 1971, the Supreme Court upheld the use of busing to achieve
                  racial desegregation in schools.
                - In 1972, the manned lunar module from Apollo 16 landed on the moon.
                - In 1978, a Korean Air Lines Boeing 707 crash-landed in northwestern
                  Russia after being fired on by a Soviet interceptor after entering
                  Soviet airspace. Two passengers were killed.
                - Ten years ago: Ramon Salcido, a California winery worker later
                  convicted of killing six relatives and a co-worker, was deported
                  from Mexico to the U.S. The case of Oliver North went to the jury in
                  his Iran-Contra trial.
                - Five years ago: Israeli and PLO negotiators wrapped up an agreement
                  transferring civilian government powers to Palestinians in the Gaza
                  Strip and Jericho.
                - One year ago: In an unusual use of a racketeering law designed to
                  fight the mob, a federal jury in Chicago ruled that anti-abortion
                  protest organizers had used threats and violence to shut down
                  clinics. A Boeing 727 leased to Air France crashed in Bogota,
                  Colombia, killing all 53 people aboard.

                *Happy Birthday*
                - Supreme Court Justice John Paul Stevens is 79.
                - Bandleader Tito Puente is 76.
                - Actress Nina Foch is 75.
                - Singer Johnny Tillotson is 60.
                - Actor George Takei is 59.
                - Actor Ryan O'Neal is 58.
                - Rock musician Craig Frost (Grand Funk; Bob Seger's Silver Bullet
                  Band) is 51.
                - Actress Jessica Lange is 50.
                - Singer Luther Vandross is 48.
                - Actor Denis Leary is 41.
                - Actor Clint Howard is 40.
                - Country singer Wade Hayes is 30.
                - Actress Carmen Electra is 27.
                - Actor Joey Lawrence is 23.