Shoghí Effendí Rabbání (March 1, 1897 – November 4, 1957), better known as
Shoghi Effendi, was the
Guardian and appointed head of the
Bahá'í Faith from 1921 until his death in 1957. After the death of
`Abdu'l-Bahá in 1921, the leadership of the Bahá'í community changed from that of a single individual to an administrative order with executive and legislative branches, the head of each being the Guardianship and the
Universal House of Justice. Shoghi Effendi was referred to as the
Guardian, and had the authority to interpret the writings of the three central figures of the religion and define the sphere of legislative authority. His writings are effectively limited to commentaries on the works of the central figures, and broad directives for the future.