80 Years Ago—September 20, 1939: Germany announces Jews must surrender radios.
Over France, the first aerial engagement of the war between the RAF and the Luftwaffe takes place.
75 Years Ago—Sept. 20, 1944: In Operation Market Garden, British ground troops and US 82nd Airborne take Nijmegen, the Netherlands.
In British Eighth Army area, Indian troops occupy the Republic of San Marino.