The Sikhs established their Empire in the Punjab after the death of the Mughal Emperor Aurangzeb Alamgir in 1707. With the death of Aurangzeb the country saw a series of rapid governmental changes that stressed it in to the depths of anarchy. Taking advantage of this certain Charat Singh, who was the head of one of the Sikh Clans, established his stronghold in Gujranwala in 1763. Charat Singh died in 1774 and was succeeded by his son, Mahan Singh, who in turn fathered the most brilliant leader in the history of the Punjab: Maharaja Ranjit Singh. It was this remarkable leader who united the whole Punjab under one flag. His rule stretched from the banks of the Jamuna to the Khyber and from Kashmir to Multan. Maharaja Ranjit Singh was the most powerful of all the Sikh Rulers and ruled over for complete 40 years. After his death in 1840 the Sikh Empire was divided into small principalities looked after by several Sikh Jagirdars. This weak situation provided a good opportunity to the British of East India Company to put an end to the Sikh strong hold in the Punjab in 1849.
Sikhs are the followers of Baba Guru Nanak Sahib. He was the son of Mehta Kalu Chand and Tripta Devi, both of them Khatris by caste. He was born at Nankana Sahib in 1464. Sikhism was born as a direct reaction against rigid, cruel and inhuman practices of Brahamanism and its rigid caste system. But another important factor which influenced the mind of the people who contributed to the growth of Sikhism, was the impact of Islam which had spread from Arabia to Iraq, Turkistan, Persia and Afghanistan and came in to contact with Christianity, Judaism, Buddhism and Zoroastrianism.
The Sikh religion is in fact a product of the Sufi and Bhakti school of thought. Guru Nanak was greatly influenced by Kabir and Shaikh Ibrahim Farid (1450 - 1535) a descendent of the famous Sufi saint Shaikh Fariduddin Shakarganj of Pak Pattan whose works were incorporated in the Garanth Sahib. Guru Nanak studied books of Hindu and Muslims religions and it was only after deep study of both the religions that he evolved his own school of thought. The basic principles of the Sikhism are much closer to Islam than to Hinduism. A study of the life, events of the Gurus and the large numbers of the monuments sacred to them will, however, reveal how deeply all the Sikh Gurus in general and Guru Nanak, Ajen Dev and Har Gobind Singh in particular are associated with Pakistan.