May 11, 1791: Jan Václav Vorísek is born in Vamberk, Kingdom of Bohemia, the son of Václav Frantisek Vorísek, schoolmaster, organist and choirmaster, and Rozálie Matiásová.
March 3, 1819: At an executive meeting of the Gesellschaft der Musikfreunde in Vienna, it is decided that Jan Václav Vorísek (27) should henceforth conduct the concerts and have a greater say in the choice of music. He will conduct the next two performances.
December 12, 1822: Jan Václav Vorísek (31) undergoes examination as one of nine candidates for the position of second court organist in Vienna. He is successful and will take up duties next month.
January 10, 1823: Jan Václav Vorísek (31), a clerk in the maritime division of the Imperial War Deparment in Vienna, is appointed assistant court organist.
February 23, 1823: A Symphony in D by Jan Václav Vorísek (31) is performed for the first time, in Vienna. It is moderately successful.
August 2, 1823: Jan Václav Vorísek (32) travels from Vienna to Karlsbad for treatment of a serious illness (probably tuberculosis). He will stay for a month.