Father founder of Sikhism...1st Guru/messenger of God...
Guru Nanak Dev[1] (Punjabi: ???? ???? ???, Guru Nanak Dev) (Born in Nankana Sahib, Punjab, (now Pakistan) on 20th October 1469 – 7 May 1539, Kartarpur, Punjab, India), was the founder of Sikhism, and the first of the ten Sikh Gurus.
Beside followers of Sikhism Guru Nanak Dev is revered by Hindus and Muslim Sufis across the Indian subcontinent.[2] His primary message to society was recorded to be "devotion of thought and excellence of conduct as the first of duties".
Widely travelled, as many literatures speak of his numerous journies spreading the message/word of God. It was in Sultanpur that Guru Nanak Dev formalised the three important pillars of Sikhism:
Naam Japna: Chanting God's name in a meditative manner.
Kirat Karo: Earning an honest living.
Va?? Chakko: Sharing with others.
http://en.wikipedia.org/wiki/Guru_Nanak