Sikh Gurus are divine spiritual masters (leaders) or messengers that established Sikhism over a period of 239 years, starting from 1469 to 1708. ‘Guru’ is also a Sanskrit term for a teacher, expert, guide or master having certain knowledge and expertise of a particular field. The year 1469 also marks the birth of Guru Nanak Dev ji, who laid the foundations of Sikhism religion. Guru Nanak Dev Ji was succeeded by nine Gurus until 1708 when Guruship (Gurgaddi) was finally passed on to holy scripture, the Guru Granth Sahib Ji when Guru Govind Singh Ji left this worldly life. Followers of Sikh faith now regard Guru Granth Sahib Ji as their eternal, living Guru as decreed by the Tenth Guru. Bhai Vir Singh designates the term ‘Guru’ in his dictionary of Guru Granth Sahib Ji as a combination of two separate words where ‘Gu’ means Darkness while ‘Ru’ means light. Hence, the term means the one who enlightens or who brings light into darkness.