Note 6 — Chapter I · Earliest Times to the Death of Alexander

The oases at the embouchure of the Oxus were anciently styled Khwārazm, from a Persian word signifying eastwards. They constitute the modern Khiva. Soghdiana comprises Bokhārā and Samarkand, and the nomenclature is derived from Soghd, the old name for the source of its wealth, the river known to the Greeks as the Polytimetus and to moderns as the Zarafshan.