Taxonomic classification of hepatitis A virus. Gust ID, Coulepis AG, Feinstone SM, Locarnini SA, Moritsugu Y, Najera R, Siegl G. Sufficient data have accumulated to permit the ICTV Ad Hoc Study Group on the Taxonomy of Hepatitis Viruses to recognize hepatitis A virus as a picornavirus.axonomic classification of hepatitis A virus. Gust ID, Coulepis AG, Feinstone SM, Locarnini SA, Moritsugu Y, Najera R, Siegl G. Sufficient data have accumulated to permit the ICTV Ad Hoc Study Group on the Taxonomy of Hepatitis Viruses to recognize hepatitis A virus as a picornavirus.
Wilhelm Wundt opens first experimental laboratory in psychology at the University of Leipzig, Germany. Credited with establishing psychology as an academic discipline, Wundt's students include Emil Kraepelin, James McKeen Cattell, and G. Stanley Hall.
Establishment of Diplomatic Relations and the American Legation in Warsaw, 1919. Diplomatic relations and the American Legation in Warsaw were established on May 2, 1919, when Hugh S. Gibson, the first U.S. Minister to Poland, presented his credentials. Establishment of a Polish Legation in the United States, 1919.