Gurū Nānak (15 April 1469 – 22 September 1539; Gurmukhi: ਗੁਰੂ ਨਾਨਕ; pronunciation: [gʊɾuː naːɳəkᵊ], ), also known as Bābā Nānak ('Father Nanak'), was an Indian spiritual teacher, mystic and poet, who is regarded as the founder of Sikhism and is the first of the ten Sikh Gurus.
Nanak is said to have travelled far and wide across Asia teaching people the message of Ik Onkar (ੴ, 'One God'), who dwells in every one of his creations and constitutes the eternal Truth. With this concept, he would set up a unique spiritual, social, and political platform based on equality, fraternal love, goodness, and virtue.