Sikhism was founded by Guru Nanak Dev at the beginning of the sixteenth century. Guru Nanak was born on April 15, 1469 in the Western Punjab village of Talwandi. Even as a child, he was given to deep thinking with no interest in worldly life. At the age of thirty, he got enlightenment. Thereafter, he traveled almost the whole of the country and went over to Mecca and Baghdad, preaching his message. On his death he was followed by nine other Gurus in succession. Guru Angad Dev Ji (1504 -1552) was Guru for thirteen years (1539 – 1552). He created a new script gurmukhi and gave the Sikhs a written language. After his death Guru Amar Das Ji (1479- 1574) followed in succession. He showed great devotion and made the langar an integral part of Sikhism. Guru Ram Das Ji took over as the fourth Guru, he composed hymns, which were later incorporated in the sacred writings. Guru Arjan Dev Ji became the fifth Guru of Sikhism. He built the world famous Harmandar Sahib, popularly known as the Golden Temple in Amritsar. He also compiled the holy Granth Sahib, a sacred religious book of the Sikhs. Guru Arjan Dev suffered martyrdom in 1606 and was followed by Siri Guru Hargobind, who maintained a standing army and symbolically wore two swords, representing spiritual and temporal power. Guru Siri Har Rai , the seventh Guru was born in 1630 and spent most of his life in devotional meditation and preaching the teachings of Guru Nanak. He passed away in 1661 and ordained his second son, Harkishan as the Guru. Guru Siri Har Krishan Ji got enlightenment in 1661. He gave his life while serving and healing the epidemic-stricken people in Delhi. The place where he breath his last is the one where, the renowned Gurdwara Bangla Sahib stands in Delhi. Siri Guru Tegh Bahadur became Guru in 1664. When Mughal Governor of Kashmir resorted to forcible conversion of Hindus, Guru Tegh Bahadur decided to fight it out. Gurdwara Sisganj in Delhi stands at the place of Guru Sahib's martyrdom and Gurdwara Rakabganj at the site of his cremation. The tenth guru, Guru Gobind Singh , was born in 1666 and became guru after the martyrdom of his father Guru Tegh Bahadur. Guru Gobind Singh, at the time of his death invested the 'guru Granth Sahib' as the supreme head of the sikhs, thus bringing the practice of nominating a religious head to a grinding halt.