The life of First Guru Nank is recorded from CE 1469-1539. In 1536-1606, the life of the Fifth Guru, Arjun Dev, was recorded. And in, 1621-1675, the life of the Tenth Guru, Tegh Bahadur, was recorded. By 1999, millions of Sikhs converged on Anandpur Sahib to celebrate the 300th anniversary of the founding of Khalsa.