To help compare sizes of different surface areas, we list here areas of the order of 1019 square metres, i.e. those between 10 trillion km2 and 100 trillion km2. See alsoareas of other orders of magnitude.
... 1973)
March 6 - Joseph Schmidt[?], tenor (+ 1942)
March 7 - Reinhard Heydrich, Nazi official
March 20 - B. F. Skinner, behavioral psychologist (+ 1990)
March 23 - ...