After his "upanayan" (coming-of-age rite) at age eleven, Tagore and his father left Calcutta in February 1873 to tour India for several months, visiting his father's Santiniketan estate and Amritsar before reaching the Himalayan hill station of Dalhousie. There Tagore read biographies, studied history, astronomy, modern science, and Sanskrit, and examined the classical poetry of Kālidāsa. During his 1-month stay at Amritsar in 1873 he was greatly influenced by melodious gurbani and nanak bani being sung at Golden Temple for which both father and son were regular visitors. He mentions about this in his "My Reminiscences" (1912) He wrote 6 poems relating to Sikhism and a number of articles in Bengali child magazine about Sikhism.