Today is the 91st day of 2016 and the 12th day of spring.

TODAY'S HISTORY: In 1889, the Eiffel Tower was dedicated in a ceremony in Paris.

In 1930, the Motion Pictures Production Code was adopted to regulate mature content in movies.

In 1968, President Lyndon Johnson announced a halt to bombing missions over North Vietnam and closed the televised speech with the announcement that he would not run for re-election.

In 1995, singer-songwriter Selena was murdered by the former president of her fan club.

TODAY'S BIRTHDAYS: Rene Descartes (1596-1650), philosopher/mathematician; Joseph Haydn (1732-1809), composer; Jack Johnson (1878-1946), boxer; Cesar Chavez (1927-1993), labor leader; Gordie Howe (1928- ), hockey player; Liz Claiborne (1929-2007), fashion designer; Herb Alpert (1935- ), musician; Christopher Walken (1943- ), actor; Al Gore (1948- ), former U.S. vice president/senator; Rhea Perlman (1948- ), actress; Angus Young (1955- ), guitarist/songwriter; Ewan McGregor (1971- ), actor; Jessica Szohr (1985- ), actress.

TODAY'S FACT: Gustave Eiffel designed the interior structure of New York's Statue of Liberty.

TODAY'S SPORTS: In 1975, Hall of Fame coach John Wooden announced his retirement during the postgame press conference after leading his UCLA Bruins to a 92-85 win over the Kentucky Wildcats and earning his NCAA-record 10th national title.

TODAY'S QUOTE: "So blind is the curiosity by which mortals are possessed, that they often conduct their minds along unexplored routes, having no reason to hope for success, but merely being willing to risk the experiment of finding whether the truth they seek lies there." -- Rene Descartes

TODAY'S NUMBER: 2,212 -- Broadway performances in the 15-year run of "Oklahoma!" The Rodgers and Hammerstein hit debuted on this day in 1943.

TODAY'S MOON: Last quarter moon (March 31).

Today is the 90th day of 2016 and the 11th day of spring.

TODAY'S HISTORY: In 1855, "Border Ruffians" from Missouri invaded Kansas during the territory's first election, forcing the election of a pro-slavery legislature.

In 1867, U.S. Secretary of State William H. Seward completed the purchase of Alaska for $7.2 million.

In 1870, the U.S. Congress readmitted Texas to the Union.

In 1964, the TV quiz show "Jeopardy!" premiered on NBC with host Art Fleming.

In 1981, President Ronald Reagan was shot in the chest in an assassination attempt by John Hinckley Jr.

TODAY'S BIRTHDAYS: Francisco Goya (1746-1828), painter; Vincent van Gogh (1853-1890), painter; John Astin (1930- ), actor; Warren Beatty (1937- ), actor/director; Eric Clapton (1945- ), singer-songwriter/musician; Paul Reiser (1957- ), actor/comedian; Piers Morgan (1965- ), TV personality; Celine Dion (1968- ), singer-songwriter; Secretariat (1970-1989), racehorse; Norah Jones (1979- ), singer-songwriter/musician; Richard Sherman (1988- ), football player.

TODAY'S FACT: The purchase of Alaska added 663,267 square miles to the United States for less than $11 per square mile.

TODAY'S SPORTS: In 1990, Jack Nicklaus made his debut in the Senior PGA Tour (since renamed the Champions Tour).

TODAY'S QUOTE: "One may have a blazing hearth in one's soul and yet no one ever came to sit by it. Passersby see only a wisp of smoke from the chimney and continue on their way." -- Vincent van Gogh

TODAY'S NUMBER: $1,075,500 -- final sale price of a pristine copy of Detective Comics No. 27, featuring the first full appearance of Batman, at a 2010 auction. The comic book was released (with a cover price of 10 cents) on this day in 1939.

TODAY'S MOON: Between full moon (March 23) and last quarter moon (March 31).

Today is the 89th day of 2016 and the 10th day of spring.

TODAY'S HISTORY: In 1867, the Dominion of Canada was established.

In 1951, Ethel and Julius Rosenberg were convicted of conspiracy to commit espionage.

In 1973, the last U.S. troops left South Vietnam, bringing an end to direct U.S. military involvement in the Vietnam War.

In 1999, the Dow Jones Industrial Average closed above 10,000 (10,006.78) for the first time.

TODAY'S BIRTHDAYS: John Tyler (1790-1862), 10th U.S. president; Denton True "Cy" Young (1867-1955), baseball player; Sam Walton (1918-1992), Wal-Mart founder; Eric Idle (1943- ), actor/comedian; Walt Frazier (1945- ), basketball player; Earl Campbell (1955- ), football player; Brendan Gleeson (1955- ), actor; Amy Sedaris (1961- ), author/actress; Elle Macpherson (1964- ), supermodel/actress; Lucy Lawless (1968- ), actress; Robert Gibbs (1971- ), political adviser; Lara Logan (1971- ), journalist; Jennifer Capriati (1976- ), tennis player.

TODAY'S FACT: NASA's Mariner 10 space probe was the first spacecraft to complete a flyby of Mercury. The first of its three encounters with the planet took place on this day in 1974.

TODAY'S SPORTS: In 1999, Wayne Gretzky (then of the New York Rangers) scored his last professional goal, bringing his career total to an NHL-record 894.

TODAY'S QUOTE: "Popularity, I have always thought, may aptly be compared to a coquette -- the more you woo her, the more apt is she to elude your embrace." -- John Tyler

TODAY'S NUMBER: 35.9 million -- estimated population of Canada in July 2015.

TODAY'S MOON: Between full moon (March 23) and last quarter moon (March 31).