Sikhism (Sikhi in Punjabi) primarily originated in 15th century Punjab region of India. The term "Sikh" has its origin in Sanskrit term meaning "disciple, student" or "instruction".[23][24] A Sikh is a disciple of the Guru.
The teachings are sort of a blend between Islam and Hinduism.
Sikhs believe in the equality of humankind, the concept of universal brotherhood of man and One Supreme God (Ik Onkar).
Sikhs are recognized by their distinctively wrapped turban, uncut hair, beard and moustache, and they are supposed to wear an iron/steel bracelet (kara). Most men have Singh (lion) and women Kaur (princess) as their last name.
In the story of Little Orphan Annie she is protected by a turban-wearing bodyguard named Punjab.