1973-12-12: Beautiful Austria

1973-12-12: 50th anniversary of the Nobel Prize Award to Fritz Pregl

1973-11-30: Stamp Day

1973-11-30: Christmas 1973

1973-10-23: Centenary of the 1st Vienna Mountain Spring Pipeline

1973-10-08: Europhot Congress Vienna

1973-10-02: 50th Anniversary of Interpol

1973-09-28: 50th Death Anniversary of Ferdinand Hanusch

1973-09-28: Vienna Trotting Race Society, centenary

1973-09-07: Birth Centenary of Max Reinhardt

1973-09-04: 13th Congress of the Int. Union of Leather Technologists

1973-09-04: 100 years International Meteorologic Cooperation

1973-08-30: Centenary of the Discovery of Franz-Joseph Land

1973-08-20: 39th Congress of the International Statistic Institute, Vien

1973-08-17: Leo Slezak (1873–1946) opera singer & movie actor

1973-08-13: Sport

1973-07-27: 25th Dornbirn Fair

1973-07-09: Europa (C.E.P.T.)

1973-06-25: 25 years Main Union of Austrian Social Insurances

1973-06-04: Birth Centenary of Otto Loewi

1973-05-14: Aviation Jubilees 1973

1973-04-24: 100th birthday of Theodor Körner

1973-01-26: 50th Death Anniversary of Alfons Petzold (1882-1923), poet

1973-01-26: Beware of Drug Abuse