Today is the 221st day of 2015 and the 50th day of summer.

TODAY'S HISTORY: In 1842, the Webster-Ashburton Treaty was signed by the United States and Canada, delineating the eastern section of their shared border.

In 1945, the United States dropped the "Fat Man" nuclear bomb on Nagasaki, Japan.

In 1969, followers of Charles Manson murdered actress Sharon Tate and four others at Tate's Los Angeles home.

In 1974, Gerald Ford was sworn in as the 38th U.S. president following Richard Nixon's resignation.

TODAY'S BIRTHDAYS: John Dryden (1631-1700), poet/dramatist/critic; Bob Cousy (1928- ), basketball player; Rod Laver (1938- ), tennis player; Jonathan Kellerman (1949- ), writer; Whitney Houston (1963-2012), singer; Brett Hull (1964- ), hockey player; Hoda Kotb (1964- ), news anchor; Deion Sanders (1967- ), football and baseball player; Eric Bana (1968- ), actor; Chamique Holdsclaw (1977- ), basketball player; Anna Kendrick (1985- ), actress; Jason Heyward (1989- ), baseball player.

TODAY'S FACT: U.S. Secretary of War Henry Stimson persuaded the Target Committee to take Kyoto, Japan, off the short list of possible nuclear targets during World War II because of its cultural and religious significance to the people of Japan.

TODAY'S SPORTS: In 1988, 27-year-old Wayne Gretzky, already considered among the greatest players in the history of hockey, was traded from the Edmonton Oilers to the Los Angeles Kings.

TODAY'S QUOTE: "Happy the man, and happy he alone, / He who can call today his own; / He who, secure within, can say, / Tomorrow, do thy worst, for I have lived today." -- John Dryden, "Imitation of Horace"

TODAY'S NUMBER: 4 -- gold medals claimed by Jesse Owens at the Berlin Olympics. He won the fourth in the 4x100-meter relay on this day in 1936, becoming the first American to win four track-and-field gold medals in one Olympiad.

TODAY'S MOON: Between last quarter moon (Aug. 6) and new moon (Aug. 14).

Today is the 220th day of 2015 and the 49th day of summer.

TODAY'S HISTORY: In 1945, President Harry S. Truman signed the United Nations charter, making the United States the first nation to join the organization.

In 1963, 15 thieves stole close to 2.6 million pounds from a mail train in Britain's "Great Train Robbery."

In 1974, President Richard Nixon announced on national television that he would resign the presidency at noon the following day.

In 1990, Iraq announced its "unification" with Kuwait, days after its military forces invaded and took over the country.

TODAY'S BIRTHDAYS: Sara Teasdale (1884-1933), poet; Marjorie Rawlings (1896-1953), novelist/Pulitzer winner; Benny Carter (1907-2003), jazz musician; Esther Williams (1921-2013), actress; Mel Tillis (1932- ), singer-songwriter; Dustin Hoffman (1937- ), actor; Keith Carradine (1949- ), actor; Deborah Norville (1958- ), journalist; The Edge (1961- ), guitarist; Roger Federer (1981- ), tennis player; Meagan Good (1981- ), actress.

TODAY'S FACT: Thomas Edison received a patent for the mimeograph on this day in 1876.

TODAY'S SPORTS: In 1988, the Chicago Cubs hosted the first-ever night game under the newly installed lights at Wrigley Field. Rain caused the game to be called in the fourth inning with the Cubs leading the Mets 3-1.

TODAY'S QUOTE: "Sift each of us through the great sieve of circumstance and you have a residue, great or small as the case may be, that is the man or the woman." -- Marjorie Rawlings, "Cross Creek"

TODAY'S NUMBER: 2,121 -- height (in feet) of the Warsaw radio mast in Poland, which held the title of the world's tallest structure until it collapsed on this day in 1991.

TODAY'S MOON: Between last quarter moon (Aug. 6) and new moon (Aug. 14).

Today is the 219th day of 2015 and the 48th day of summer.

TODAY'S HISTORY: In 1789, the U.S. Department of War was established.

In 1942, the U.S. 1st Marines Division landed on the island of Guadalcanal, marking the first major American offensive of World War II.

In 1964, Congress passed the Gulf of Tonkin Resolution in response to reported Vietnamese attacks.

In 1998, U.S. embassies in Tanzania and Kenya were bombed.

TODAY'S BIRTHDAYS: Ralph Bunche (1904-1971), activist/Nobel laureate; Tobin Bell (1942- ), actor; Garrison Keillor (1942- ), writer/entertainer; Wayne Knight (1955- ), actor; David Duchovny (1960- ), actor; Harold Perrineau (1963- ), actor; Jimmy Wales (1966- ), Wikipedia co-founder; Michael Shannon (1974- ), actor; Charlize Theron (1975- ), actress; Sidney Crosby (1987- ), hockey player; Mike Trout (1991- ), baseball player.

TODAY'S FACT: In 1947, Norwegian anthropologist Thor Heyerdahl and his crew of five crashed into a reef at Raroia, near Tahiti, aboard their balsa wood raft, Kon-Tiki. The 4,300-mile, 101-day voyage from Peru was undertaken to prove that prehistoric South Americans could have colonized the Polynesian Islands.

TODAY'S SPORTS: In 2007, Barry Bonds of the San Francisco Giants hit his 756th career home run, surpassing the record set by Hank Aaron.

TODAY'S QUOTE: "They say such nice things about people at their funerals that it makes me sad to realize that I'm going to miss mine by just a few days." -- Garrison Keillor, "Good Poems for Hard Times"

TODAY'S NUMBER: 1,368 -- height (in feet) of the wire suspended between the World Trade Center towers and walked by French high-wire artist Philippe Petit on this day in 1974. Petit walked back and forth, sat and even danced on the 200-foot-long wire for 45 minutes before surrendering to police.

TODAY'S MOON: Between last quarter moon (Aug. 6) and new moon (Aug. 14).