American transcontinental airmail service begins. The route between San Francisco and Mineola, N.Y., is flown in 14 segments by pilots flying US-built de Havilland DH-4s. The first flight, made mostly in bad weather, takes 33 hours, 20 minutes.
U.S. military and law enforcement officials captured Venezuelan President Nicolás Maduro in a high-stakes military operation on Jan. 3, a mission carried out by the Army's Delta Force and supported by extensive American airpower.

