Today is the 91st day of 2015 and the 13th day of spring.

TODAY'S HISTORY: In 1826, Samuel Moray received the patent for the first internal combustion engine.

In 1945, Operation Iceberg began as U.S. troops landed on the Japanese island of Okinawa.

In 1970, President Richard Nixon signed the Public Health Cigarette Smoking Act, which required the surgeon general's warning on tobacco products and banned cigarette ads on radio and TV.

In 2011, a mob protesting the burning of the Quran attacked the United Nations compound in Mazar-i-Sharif, Afghanistan, causing the deaths of 13 people.

TODAY'S BIRTHDAYS: Otto von Bismarck (1815-1898), German political leader; Edmond Rostand (1868-1918), playwright; Sergei Rachmaninoff (1873-1943), composer; Milan Kundera (1929- ), author; Debbie Reynolds (1932- ), actress; Ali MacGraw (1939- ), actress; Samuel Alito (1950- ), Supreme Court justice; Rachel Maddow (1973- ), TV personality; Hillary Scott (1986- ), singer-songwriter; Asa Butterfield (1997- ), actor.

TODAY'S FACT: Two monumental innovations in meteorology occurred on April 1: In 1875, Francis Galton published the first newspaper weather map; in 1960, TIROS-1, the first weather satellite, was launched from Cape Canaveral, Florida.

TODAY'S SPORTS: In 1985, the eighth-seeded Villanova Wildcats defeated the top-seeded and heavily favored Georgetown Hoyas 66-64 in the NCAA championship game.

TODAY'S QUOTE: "My soul, be satisfied with flowers, /

With fruit, with weeds even; but gather them /

In the one garden you may call your own." -- Edmond Rostand, "Cyrano de Bergerac"

TODAY'S NUMBER: $731.54 billion -- value of Apple Inc. in March 2015. The company was founded in Cupertino, California, by Steve Jobs, Steve Wozniak and Ronald Wayne on this day in 1976.

TODAY'S MOON: Between first quarter moon (March 27) and full moon (April 4).

Today is the 90th day of 2015 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 built metal structures all over the world, but he also designed railway bridges and 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 post-game 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: "If you really want to make a friend, go to someone's house and eat with him ... the people who give you their food give you their heart." -- Cesar Chavez

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: Between first quarter moon (March 27) and full moon (April 4).

Today is the 89th day of 2015 and the 11th day of spring.

TODAY'S HISTORY: 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, initially ridiculed by some in Congress and in the press as "Seward's Folly" and "Seward's Icebox," 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: "Be clearly aware of the stars and infinity on high. Then life seems almost enchanted after all." -- Vincent van Gogh

TODAY'S NUMBER: 195.7 million -- barrels of crude oil produced by Alaska in 2013.

TODAY'S MOON: Between first quarter moon (March 27) and full moon (April 4).