India

1973 Vithalbhai Patel (Lawyer) Commemoration

1973 K. S. Ranjitsinhji (Cricketer) Commemoration

1973 Romesh Chandra Dutt (Writer) Commemoration

1973 Gandhi and Nehru Commemoration

1973 Allan Octavian Hume (Founder of Indian National Congress) Commemoration

1973 The 500th Anniversary of the Birth of Nicolaus Copernicus

1973 The 100th Anniversary of the Discovery of Leprosy Bacillus by Dr. G. A. Hansen

1973 The 100th Anniversary of the Birth of Vishnu Digambar Paluskar

1973 Centenaries

1973 The 1900th Anniversary of the Death of St. Thomas