Hecho matemático: 743 is the number of independent sets of the graph of the 4-dimensional hypercube.
Trivia: 743 is an uninteresting number.
Fecha histórica: January 12th is the day in 2006 that a stampede during the Stoning of the Devil ritual on the last day at the Hajj in Mina, Saudi Arabia, kills at least 362 Muslim pilgrims.