Complex sentence: Although the early Mughal emperors had peaceful relations with the Sikh Gurus, the Sikhs started facing religious persecution during the reign of Jahangir to up and persecution against the Sikhs continued until the creation of the Sikh Kingdom in 1799.
Split into simpler sentences: Although the early Mughal emperors had peaceful relations with the Sikh Gurus, the Sikhs started facing religious persecution during the reign of Jahangir. Persecution against the Sikhs continued until the creation of the Sikh Kingdom in 1799.