Sikhism traces its origin to Guru Nanak, also reverently known as Guru Nanak Dev Ji, who lived in the late 15th century in the Punjab region of the Indian subcontinent. His birth is traditionally dated to 1469 CE in a place called Talwandi, a town later known as Nankana Sahib. From this historical and spiritual context, Sikhism emerges not as an abstract doctrine but as a lived response to the social and religious conditions of that era. The temporal setting in the 15th century is therefore not a mere date on a timeline, but the backdrop against which a new vision of devotion and equality took shape.

Guru Nanak is understood to have begun actively preaching his spiritual message around the turn of the 16th century, and it is through this sustained teaching that Sikhism took recognizable form. His life span, often given as 1469–1539, marks the period in which the foundational principles of the Sikh path were articulated and modeled. The emphasis on one God, on the essential equality of all human beings regardless of caste or social status, and on righteous living did not arise in a vacuum; they were woven into the fabric of everyday life through his words and example. In this way, the founding of Sikhism can be seen not as a single event, but as a gradual crystallization of insight and practice centered on Guru Nanak’s spiritual awakening.

Within this historical frame, the founding of Sikhism is best understood as the unfolding of Guru Nanak’s realization that devotion to one God and the recognition of human equality are inseparable. His birth in 1469 and his later preaching form the chronological anchor, yet the true significance lies in how these dates mark a turning point in religious consciousness in Punjab. The late 15th century thus becomes a symbolic threshold: a moment when inherited divisions of caste and status were challenged by a new call to live truthfully, justly, and in remembrance of the Divine.