21 Apr 1942
  • Large number of Japanese warships were dispatched in search for the carriers that launched the Doolittle Raiders. ww2dbase [Main Article | CPC]
  • US President Roosevelt ordered the seizure of all patents owned by enemy nations. ww2dbase [Main Article | CPC]
  • British submarine HMS Torbay sank German ship Delpa II 12 miles north of Crete, Greece at 1536 hours with her surface guns; Germans counterattacked with coastal guns followed by the dispatch of two torpedo boats, but Torbay would be able to dive and escape. ww2dbase [CPC]
Atlantic Ocean
  • German submarine U-576 sank US freighter Pipestone County 450 kilometers east of Virginia, United States at 1854 hours; all 35 aboard survived and were rescued by US Coast Guard cutter Calypso. ww2dbase [Main Article | Event | CPC]
  • German submarine U-84 sank Panamanian ship Chenango 30 miles off Cape Hatteras, North Carolina, United States at 0300 hours; 30 were killed, 2 survived. At 0236 hours, U-201 sank Norwegian ship Bris in the middle of the North Atlantic; 5 were killed, 21 survived. German submarine U-752 sank US freighter West Imboden 150 kilometers east of Boston, Massachusetts, United States; all 35 aboard survived. Meanwhile, German submarine U-459 departed from Germany on a resupplying mission for other submarines; she was the first of such supply submarines in the German Navy. ww2dbase [Main Article | CPC]
Australian Papua
  • Japanese aircraft based in Rabaul, New Britain attacked Port Moresby, Australian Papua. ww2dbase [CPC]
Burma
  • Japanese 18th Division captured Kyidaunggan, Burma from Chinese troops. ww2dbase [Main Article | CPC]
France
  • 20 French civilians were killed by Germans at Saint-Nazaire, France in retaliation of the 28 Mar 1942 raid by British commandos. ww2dbase [CPC]
  • William Leahy's wife Louise Tennent Harrington Leahy passed away from a post-surgery embolism in France, with Leahy at her side. She would later be buried at the Arlington National Cemetery in Virginia, United States. ww2dbase [Main Article | CPC]
Hawaii
  • Joseph Rochefort's cryptanalytic team based in Pearl Harbor, US Territory of Hawaii intercepted a Japanese Navy radio message noting that Carrier Division 5 (Shokaku and Zuikaku) were being detached from the Mobile Force for operations with the 4th Fleet in the South Pacific. ww2dbase [Main Article | Facility | CPC]
Iceland
  • Allied convoy QP-10 arrived at Reykjavík, Iceland. ww2dbase [Main Article | CPC]
Japan
  • USS S-35 remained off Paramushiro, Hokkaido, Japan in the Kurile Islands due to heavy fog. ww2dbase [Main Article | CPC]
Malta
  • Axis aircraft sank British anti-submarine trawler HMT Jade at Grand Harbour, Malta. ww2dbase [Main Article | CPC]
United States
  • The newspaper San Francisco News reported that the city government of San Francisco, California, United States was considering the banning the employment of Japanese-Americans. ww2dbase [CPC]
Photo(s) dated 21 Apr 1942
British Martlet IV (Wildcat) fighter at Naval Air Station, Anascotia, Washington DC, 21 Apr 1942, photo 1 of 2British Martlet IV (Wildcat) fighter at Naval Air Station, Anascotia, Washington DC, 21 Apr 1942, photo 2 of 2

21 Apr 1942 Interactive Map

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis




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Harry Hopkins, 19 May 1938




Famous WW2 Quote
"All right, they're on our left, they're on our right, they're in front of us, they're behind us... they can't get away this time."

Lt. Gen. Lewis B. "Chesty" Puller, at Guadalcanal