Sikhism, or known in Punjabi as Sikhi, is a monotheistic religion founded during the 15th century in the Punjab region, by Guru Nanak and continued to progress through the ten successive Sikh gurus (the last guru being the holy scripture Guru Granth Sahib). It is the fifth-largest organized religion in the world, with approximately 30 million adherents. Adherents of Sikhism are known as Sikhs (students or disciples).

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