The BahÃ ' Ã Faith is a religion started in the 1800s by BahÃ ` u 'll Ã h who was born in Tehran , Iran . Followers of this religion call themselves BahÃ ' Ã s. The name BahÃ ` u 'll Ã h is Arabic for `` The Glory of God '' . The word `` BahÃ ' Ã '' is used either as an adjective to refer to the BahÃ ' Ã Faith or as a term for a follower of BahÃ ` u 'll Ã h. The word is not a noun meaning the religion as a whole .