Harun al-Rashid receiving an Embassy from Charles the Great. Under Harun al-Rashid the empire of the Abbasid Caliphs was of greater extent than at any other period. His reputation in the West is sufficiently attested by the fact that Charlemagne; about the time he was crowned emperor of the Romans in 800 AD; sent an embassy to Caliph to obtain facilities for trade and for pilgrimage in the Holy Land. The ambassadors were two Christians and a Jew; and among the gifts they brought was an organ. Illustration for Hutchinson's History of the Nations (Hutchinson; c.1920). Note: Image has been digitally enhanced to facilitate repro.