Return to Daily IQ 1951Atomic espionageJulius and Ethel Rosenberg were found guilty of passing atomic secrets to the Russians and were sentenced to death. 1848 For the first time in recorded history, Niagara Falls stopped flowing. An ice jam in the Niagara River above the rim of the falls caused the water to stop. 1867 The North America Act was passed by the British parliament, creating the dominion of Canada. 1971 Lt. William Calley was convicted of murdering 22 Vietnamese civilians in the My Lai massacre. 1973 The last U.S. troops left South Vietnam. 1999 The Dow Jones industrial average closed above 10,000 for the first time, at 10,006.78. 2002 Israel declared Yasir Arafat an enemy. Yesterday Return to Daily IQ Tomorrow or choose another day: JanFebMarAprMayJunJulAugSepOctNovDec Today's Birthday or select month and date: JanFebMarAprMayJunJulAugSepOctNovDec Year by Year: 1900?2014 or enter a year: Enter a year: ?