TODAY'S HISTORY: In 1834, Britain abolished slavery in all of its colonies.
In 1876, Colorado was admitted as the 38th U.S. state.
In 1957, the United States and Canada announced the formation of the North American Aerospace Defense Command (NORAD).
In 1966, ex-Marine Charles Whitman opened fire from a tower at the University of Texas at Austin, killing 14 people and wounding 32.
In 2007, a highway bridge in Minneapolis collapsed over the Mississippi River, killing 13 and injuring 145.
TODAY'S BIRTHDAYS: William Clark (1770-1838), explorer; Francis Scott Key (1779-1843), poet/lawyer; Herman Melville (1819-1891), author; Dom DeLuise (1933-2009), actor/comedian; Yves Saint Laurent (1936-2008), fashion designer; Jerry Garcia (1942-1995), singer-songwriter; Coolio (1963- ), rapper; Sam Mendes (1965- ), film director; Jason Momoa (1979- ), actor; Max Carver (1988- ), actor; Madison Bumgarner (1989- ), baseball player.
TODAY'S FACT: "Video Killed the Radio Star" by the Buggles was the first music video aired on MTV when the network launched on this day in 1981.
TODAY'S SPORTS: In 1936, the Olympic Games opened in Berlin before a crowd of 100,000 spectators.
TODAY'S QUOTE: "It is better to fail in originality, than to succeed in imitation. He who has never failed somewhere, that man cannot be great. Failure is the true test of greatness." -- Herman Melville, "Hawthorne and His Mosses"
TODAY'S NUMBER: 14,130 -- final elevation (in feet) of Colorado's Mount Evans Scenic Byway, the highest paved road in North America.
TODAY'S MOON: Between new moon (July 31) and first quarter moon (Aug. 7).