The "Guru" in Sikhism is an enlightener and messenger.They are the messengers of the Timeless. They renew the eternal wisdom. They are universal men who free our minds from bigotry and superstitions, dogmas and rituals, and emphasize the simplicity of the religion. The first of the Gurus and the founder of the Sikh religion was Guru Nanak. He was born at Talwandi (now known as Nankana Sahib in Pakistan) on October 20, 1469. Guru ji mastered Punjabi, Sanskrit and Persian at an early age and in childhood revolted against ritualism, caste, prejudices, hypocrisy and idolatry.