Yahya Muhammad Hamid ed-Din, Imam of Yemen (born 1904)

Yahya Muhammad Hamid ed-Din was the first king of the Mutawakkilite Kingdom of Yemen from 1918 until his assassination in 1948. He became Imam of the Zaydis, a branch of Shia Islam, in 1904 after the death of his father, Muhammad Al-Mansur, and Imam of Yemen in 1918. His name and title in full was "His Majesty Amir al-Mu'mimin al-Mutawakkil 'Ala Allah Rab ul-Alamin Imam Yahya bin al-Mansur Bi'llah Muhammad Hamidaddin, Imam and Commander of the Faithful".

The Imams of Yemen, later also titled the Kings of Yemen, were religiously consecrated leaders (imams) belonging to the Zaidi branch of Shia Islam. They established a blend of religious and temporal-political rule in parts of Yemen from 897. Their imamate endured under varying circumstances until the end of the North Yemen civil war in 1970, following the republican revolution in 1962. Zaidi theology differs from Isma'ilism and Twelver Shi'ism by stressing the presence of an active and visible imam as leader. The imam was expected to be knowledgeable in religious scholarship, and to prove himself a worthy headman of the community, even in battle if this was necessary. A claimant of the imamate would proclaim a "call" (dawah), and there were not infrequently more than one claimant.

February 17 is the 48th day of the year in the Gregorian calendar; 317 days remain until the end of the year.