Today's Highlight in History:
On Sept. 1, 1939, World War II began as Nazi Germany invaded Poland.
On this date:
In 1807, 200 years ago, former Vice President Aaron Burr was found not guilty of treason. (Burr was then tried on a misdemeanor charge, but was again acquitted.)
In 1897, the first section of Boston's new subway system was opened.
In 1905, Alberta and Saskatchewan entered Confederation as the eighth and ninth provinces of Canada.
In 1907, American labor leader Walter P. Reuther was born in Wheeling, W.Va.
In 1923, the Japanese cities of Tokyo and Yokohama were devastated by an earthquake that claimed some 140,000 lives.
In 1932, New York City Mayor James J. "Gentleman Jimmy" Walker resigned following charges of graft and corruption in his administration.
In 1951, the United States, Australia and New Zealand signed a mutual defense pact, the ANZUS treaty.
In 1961, the Soviet Union ended a moratorium on atomic testing with an above-ground nuclear explosion in central Asia.
In 1983, 269 people were killed when a Korean Air Lines Boeing 747 was shot down by a Soviet jet fighter after the airliner entered Soviet airspace.
In 1987, peace demonstrator S. Brian Willson lost his legs when he was hit by a train at the Concord Naval Weapons Station in California while protesting weapons shipments to Central America.
Ten years ago: As Britain continued to mourn the untimely death of Princess Diana, there came word from a source in the Paris prosecutor's office that Diana's driver, Henri Paul, was legally intoxicated at the time of the crash. Armed robbers posing as postal workers stole more than $37 million from a Zurich, Switzerland, post office. (A total of 19 people in five countries were arrested in connection with the case.)