Sikhism is about 500 years old and the youngest religion in the world. The Sikh religion today has a following of over 27 million people worldwide and is ranked as the world's 5th largest religion. It was founded by SIRI GURU NANAK DEV JI, the first Guru of the Sikhs. The succeeding nine Gurus nurtured and developed his ideas and ... teachings. Guru Gobind Singh Ji, the tenth Guru, brought to an end to the line of human Gurus and in 1708, installed SRI GURU GRANTH SAHIB JI, as the permanent Guru of the Sikhs. The holy scriptures include the writings of the Ten Gurus and their disciples which only talks about one almighty GOD. Sikhs do not believe in anything else, but one almighty God WAHEGURU. There are lots of names of God and Sikhs accept that. Sikhs are instructed to remain free life and respect all religions.