Small signs throughout the ITC grounds and Besant Hall provide brief descriptions of notable places and objects. Further information is available here.
Annie Besant (1847–1933), second president of the Theosophical Society (TS) from 1907 to 1933 — an outstanding orator, a champion of human freedom, a suffragette, an educationalist, a philanthropist, and the author of more than three hundred books and pamphlets.
In 1925, the estate of the ITC was donated to her in her capacity as TS President.
For her biography go to https://www.ts-adyar.org/annie-besant-1847-1933. On https://en.wikipedia.org/wiki/Annie_Besant much can be found about her political work.