Adyar Day, observed on February 17 in the Theosophical Society based in Adyar, Chennai, India, recognizes the significance in Theosophical Society history of the establishment of headquarters by the Founders, H. P. Blavatsky and Col. H. S. Olcott. According to Annie Besant, the suggestion to establish this annual event came from Madame de Manziarly. Individual members and groups use the date as a reminder to take up a monetary collection for support of the Adyar Headquarters.
- The History of Adyar Day by Ananya S. Rajan
- Annie Besant, "Adyar Day" The Messenger 14.9 (February 1927), 189.