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

Bahá'í Faith

The Bahá'í Faith is a monotheistic religion founded by Bahá'u'lláh in 19th-century Persia, emphasizing the spiritual unity of all humankind. There are an estimated five to six million Bahá'ís around the world in more than 200 countries and territories....

 from 1921 until his death in 1957. After the death of `Abdu'l-Bahá

`Abdu'l-Bahá

‘Abdu’l-Bahá , born ‘Abbás Effendí, was the eldest son of Bahá'u'lláh, the founder of the Bahá'í Faith. In 1892, `Abdu'l-Bahá was appointed in his father's will to be his successor and head of the Bahá'í Faith. `Abdu'l-Bahá was born in Tehran to an aristocratic family of the realm...

 in 1921, the leadership of the Bahá'í community entered a new phase, evolving 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

Universal House of Justice

The Universal House of Justice is the supreme governing institution of the Bahá'í Faith. It is a legislative institution with the authority to supplement and apply the laws of Bahá'u'lláh, the founder of the Bahá'í Faith, and exercises a judicial function as the highest appellate institution in the...

.