Today is the 151st day of 2015 and the 73rd day of spring.

TODAY'S HISTORY: In 1790, President George Washington signed the first U.S. copyright law.

In 1889, the failure of the South Fork Dam on Pennsylvania's Lake Conemaugh caused a huge flood that engulfed Johnstown, Pennsylvania, claiming 2,209 lives.

In 1970, an undersea earthquake off the coast of the Ancash region of Peru caused a massive avalanche that resulted in an estimated 74,000 fatalities.

In 2005, an article in Vanity Fair magazine revealed that former FBI official W. Mark Felt was the anonymous Watergate scandal whistleblower known as "Deep Throat."

TODAY'S BIRTHDAYS: Walt Whitman (1819-1892), poet/journalist; Pope Pius XI (1857-1939); Norman Vincent Peale (1898-1993), religious leader/author; Clint Eastwood (1930- ), actor/director; Johnny Paycheck (1938-2003), singer-songwriter; Joe Namath (1943- ), football player; John Bonham (1948-1980), drummer; Lea Thompson (1961- ), actress; Billy Donovan (1965- ), basketball coach; Brooke Shields (1965- ), actress; Archie Panjabi (1972- ), actress; Colin Farrell (1976- ), actor.

TODAY'S FACT: Copyright laws established in 1998 state that copyright protections last for the lifetime of the author, plus an additional 70 years.

TODAY'S SPORTS: In 1937, New York Giants pitcher Carl Hubbell's 24-game winning streak ended.

TODAY'S QUOTE: "The way to happiness: Keep your heart free from hate, your mind from worry. Live simply, expect little, give much. Scatter sunshine, forget self, think of others. Try this for a week and you will be surprised." -- Norman Vincent Peale, "The Power of Positive Thinking"

TODAY'S NUMBER: 2.6 -- diameter (in miles) of the widest tornado in recorded history, an EF5 tornado that struck El Reno, Oklahoma, on this day in 2013.

TODAY'S MOON: Between first quarter moon (May 25) and full moon (June 2).

Today is the 150th day of 2015 and the 72nd day of spring.

TODAY'S HISTORY: In 1431, 19-year-old Joan of Arc was burned at the stake in Rouen, France, for heresy.

In 1922, the Lincoln Memorial was dedicated in Washington, D.C.

In 1958, unidentified soldiers from World War II and the Korean War were interred in Arlington National Cemetery's Tomb of the Unknowns.

In 2002, cleanup at the former World Trade Center site in New York City ended after eight months.

TODAY'S BIRTHDAYS: Peter Carl Faberge (1846-1920), goldsmith/jeweler; Mel Blanc (1908-1989), voice actor; Benny Goodman (1909-1986), bandleader; Joseph Stein (1912-2010), playwright; Gale Sayers (1943- ), football player; Wynonna Judd (1964- ), singer-songwriter; Idina Menzel (1971- ), singer/actress; Manny Ramirez (1972- ), baseball player; Cee Lo Green (1974- ), singer-songwriter; Lyoto Machida (1978- ), mixed martial artist; Clint Bowyer (1979- ), race car driver.

TODAY'S FACT: Abraham Lincoln's only surviving son, Robert Todd Lincoln, then 79 years old, was present at the Lincoln Memorial dedication ceremony in 1922.

TODAY'S SPORTS: In 1911, Ray Harroun, driving a Marmon Wasp equipped with the first rearview mirror, won the first Indianapolis 500.

TODAY'S QUOTE: "Here rests in honored glory an American soldier known but to God" -- Inscription on the Tomb of the Unknowns at Arlington National Cemetery

TODAY'S NUMBER: 36 -- Doric columns in the Lincoln Memorial, one for each state that had been admitted to the Union at the time of Lincoln's death, including those that had seceded.

TODAY'S MOON: Between first quarter moon (May 25) and full moon (June 2).

Today is the 149th day of 2015 and the 71st day of spring.

TODAY'S HISTORY: In 1453, Ottoman armies captured Constantinople after a 53-day siege, effectively crushing the Byzantine Empire.

In 1790, Rhode Island became the last of the original 13 Colonies to ratify the U.S. Constitution.

In 1848, Wisconsin was admitted as the 30th U.S. state.

In 1953, Sir Edmund Hillary and Tenzing Norgay became the first climbers known to have reached the summit of Mount Everest.

TODAY'S BIRTHDAYS: Patrick Henry (1736-1799), attorney/politician; G.K. Chesterson (1874-1936), writer; Bob Hope (1903-2003), comedian/actor; John F. Kennedy (1917-1963), 35th U.S. president; Bob Simon (1941-2015), journalist; Danny Elfman (1953- ), composer; Annette Bening (1958- ), actress; Rupert Everett (1959- ), actor; Melissa Etheridge (1961- ), singer-songwriter; Daniel Tosh (1975- ), comedian/TV personality; Carmelo Anthony (1984- ), basketball player.

TODAY'S FACT: Rhode Island's constitution identifies the state's official name as the "State of Rhode Island and Providence Plantations."

TODAY'S SPORTS: In 1990, Rickey Henderson stole his 893rd base, breaking Ty Cobb's American League career stolen base record.

TODAY'S QUOTE: "A good novel tells us the truth about its hero; but a bad novel tells us the truth about its author." -- G.K. Chesterson, "Heretics"

TODAY'S NUMBER: 18 -- Academy Awards ceremonies for which legendary entertainer Bob Hope served as host or co-host.

TODAY'S MOON: Between first quarter moon (May 25) and full moon (June 2).