80 Years Ago—April 6, 1940: British Ministry of Food announces “Kitchen Front” campaign to save food.
Germany recalls all 1, 2, 5, and 10-Pfennig coins to reclaim copper and bronze; will use zinc instead.
75 Years Ago—Apr. 6, 1945: Japanese launch air counterattack on Okinawa: over 400 planes, including kamikazes, strike US naval and ground forces; 300 shot down.
Yugoslavian Partisans liberate Sarajevo.