Guru Gobind Singh (December 22, 1666 in Patna, Bihar, India - October 7, 1708) was the tenth and last of the Ten human form Gurus of Sikhism. He became Guru on November 11, 1675 at the age of nine, following in the footsteps of his father Guru Teg Bahadur. Before Guru Ji left his body, he nominated Sri Guru Granth Sahib (SGGS) as the next perpetual Guru of the Sikhs. Guru Gobind Singh moulded the Sikh religion into its present form that we see today with the formation of the Khalsa in 1699 and completed the final layout of the perpetual Sikh Guru, the Guru Granth Sahib which some will say was his greatest act.