500 year old religion founded by Nanak

Although religious scholars generally view Sikhism as a blend of Hinduism and Islam, most Sikhs believe that their religion is unique without precursors, originating from a series of ten gurus, starting with Guru Nanak. Sikhs believe in a single deity, and reject class differences. There are about 18 million Sikhs in the world; most are concentrated in the Punjab region in northwest India.

the doctrines of a monotheistic religion founded in northern India in the 16th century by Guru Nanak and combining elements of Hinduism and Islam

Sikhism is Nanakian Philosophy. The anglicized word Sikhism came from Punjabi word Sikhi (See ‘Sikhi’)