This monotheistic religion, founded in 15th-centory Punjab (now North India and Pakistan), preaches equality of all mankind and peace. The faith, the world’s fifth-largest organized religion, does not have clergy. The faith has had 10 gurus who lived as leaders in the 15th-17th centuries; the Guru Granth Sahib is sacred scripture and the supreme authority. There are more than 25 million Sikhs worldwide, including roughly 700,000 in the United States, according to the Sikh American Legal Defense and Education Fund.
Sikhs carry a canopy protecting the Shri Guru Granth Sahib, the religion's sacred book, during 2004 celebrations of the 400th anniversary of the book at the Golden Temple in Amritsar, India. The Golden Temple is the central worship center or gurdwara for Sikhs.Aman Sharma/AP