Amram (d. 875), a famous Gaon or head of the Jewish
Academy of Sura (Persia) in the 9th century. He was author
of many Responsa, but his chief work was liturgical.
He was the first to arrange a complete liturgy for the
synagogue, and his Prayer-Book (Siddur Rab `Amram) was
the foundation of most of the extant rites in use among the
Jews. The siddur was published in Warsaw in two parts (1865).