Today is the 245th day of 2012 and the 74th day of summer.
TODAY'S HISTORY: In 1897, the first section of Boston's subway system -- the first underground public transportation in the U.S. -- opened.
In 1939, Germany invaded Poland, marking the beginning of World War II.
In 2004, Chechen militants took more than 1,100 people hostage at a school in Beslan, Russia.
TODAY'S BIRTHDAYS: Edgar Rice Burroughs (1875-1950), author/journalist; Rocky Marciano (1923-1969), boxer; Conway Twitty (1933-1993), singer; Lily Tomlin (1939- ), actress/comedian; Barry Gibb (1946- ), singer/songwriter; Phil McGraw (1950- ), TV personality; Gloria Estefan (1957- ), singer; Clinton Portis (1981- ), football player.
TODAY'S SPORTS: In 1972, Bobby Fischer won the World Chess Championship in Reykjavik, Iceland.
TODAY'S FACT: Of all the countries involved in World War II, Poland is believed to have lost the highest percentage of its citizens to war-related fatalities, at about 20 percent.
TODAY'S QUOTE: "All sides in a trial want to hide at least some of the truth." -- Alan Dershowitz
TODAY'S NUMBER: 900 -- unmarked graves unearthed by workers building the first section of the Boston subway system in the late 19th century.
TODAY'S MOON: Between full moon (Aug. 31) and last quarter (Sept. 8).