By the time of Handel's death in 1759, Judas Maccabaeus had become the composer's second most popular oratorio: it received thirty-three London performances during the composer's lifetime, and continued to receive regular performances in London from 1760 until 1774. This thesis begins with a review of the historical and social, events which led to the composition of Judas Maccabaeus in 1746. Then the evolution of the libretto and music up to the first performance on 1 April 1747 is traced. The form of Handel's first performing version is reconstructed, involving the interpretation of early sources and the correction of errors found in available published editions of the work. Chapters 4-6 trace the subsequent versions of the work, as ...