Tradition: Sikhism
Link: http://www2.hds.harvard.edu/spiritual/multifaith_about.html
The fifth Guru, he built the Golden Temple of Amritsar to emphasize that the Sikh way was open to all, regardless of caste; the temple was constructed with doors facing all four directions. The first Sikh martyr, Arjan is also remembered for his contributions to and compilation of the Sikh Scriptures.