Sikhism is a monotheistic religion that originated in the Punjab region of India in the 15th century. Founded by Guru Nanak, it emphasizes the belief in one God and the teachings of ten successive Gurus, which are compiled in the Guru Granth Sahib, the holy scripture of Sikhism. The core principles of Sikhism include equality, community service, and devotion to God. Sikhs practice their faith through prayer, meditation, and participation in community activities, such as the Langar, a communal meal served to all, regardless of background or status. This reflects the Sikh commitment to social justice and equality.