75 Years Ago—Jan. 18, 1944: US Fourth War Loan Drive begins, runs through February 15; sales made in pharmacies are designated for C-47 ambulance planes. Read more: World War II War Bonds.
US Navy PBY Catalinas based in Morocco carrying Magnetic Anomaly Detection (MAD) gear begin barrier patrols across the Straits of Gibraltar to detect U-boats transiting submerged at night.
Metropolitan Opera House in New York City holds its first jazz concert, featuring Louis Armstrong, Benny Goodman, Lionel Hampton, Artie Shaw, Roy Eldridge, and Jack Teagarden.