Guru Nanak  pronunciation (help·info)^[1] (Punjabi: ਗੁਰੂ ਨਾਨਕ; Hindi: गुरु नानक, Urdu: گرونانک, [ˈɡʊɾu ˈnɑnək] Gurū Nānak) (15 April 1469 – 22 September 1539) is the founder of Sikhism and the first of the Sikh Gurus. His birth is celebrated world-wide on Kartik Puranmashi, the full-moon day which falls on different dates each year in the month of Katak, October–November

Guru Nanak travelled far and wide teaching people the message of one God who dwells in every one of God's creations and constitutes the eternal Truth.^[ He set up a unique spiritual, social, and political platform based on equality, fraternal love, goodness, and virtue.^[

It is part of Sikh religious belief that the spirit of Guru Nanak's sanctity, divinity and religious authority descended upon each of the nine sNanak was born on 15 April 1469 at Rāi Bhoi Kī Talvaṇḍī (present day Nankana Sahib, Punjab, Pakistan) near Lahore.^[] His parents were Kalyan Chand Das Bedi, popularly shortened to Mehta Kalu, and Mata Tripta.^[ His father was the local patwari (accountant) for crop revenue in the village of Talwandi. His parents were bothHindus and belonged to the merchant caste

He had one sister, Bebe Nanaki, who was five years older than he was. In 1475 she married and moved to Sultanpur. Nanak was attached to his sister and followed her to Sultanpur to live with her and her husband. At the age of around 16 years, Nanak started working under Daulat Khan Lodi, employer of Nanki's husband. This was a formative time for Nanak, as the Puratan (traditional) Janam Sakhi suggests, and in his numerous allusions to governmental structure in his hymns, most likely gained at this time

Commentaries on his life give details of his blossoming awareness from a young age. At the age of five, Nanak is said to have voiced interest in divine subjects. At age seven, his father enrolled him at the village school as was the customNotable lore recounts that as a child Nanak astonished his teacher by describing the implicit symbolism of thefirst letter of the alphabet, which is an almost straight stroke in Persian or Arabic, resembling the mathematical version of one, as denoting the unity or oneness of God.^[Other childhood accounts refer to strange and miraculous events about Nanak, such as one witnessed by Rai Bular, in which the sleeping child's head was shaded from the harsh sunlight, in one account, by the stationary shadow of a tree^[or, in another, by a venomous cobra.^[

On 24 September 1487 Nanak married Mata Sulakkhani, daughter of Mūl Chand and Chando Rāṇī, in the town of Batala. The couple had two sons, Sri Chand (8 September 1494 – 13 January 1629)^[17] and Lakhmi Chand (12 February 1497 – 9 April 1555). Sri Chand was the founder of the Udasi sect of Sikhism.ubsequent Gurus when the