Wednesday night’s U.S. presidential debate in Denver, Colo. was the most-tweeted-about event in American political history, dwarfing records set by this year’s Democratic National Convention and Republican National Convention. In total, the debate between U.S. President Barack Obama and Republican presidential candidate Mitt Romney generated 10.3 million tweets in 90 minutes — a political-event record, revealed @gov, the Twitter feed for the microblogging service’s government and politics team. Read the full story at Mashable.