Note 112 — INTRODUCTION

Rakka is on the left bank of the Euphrates. It was an important city of Upper Mesopotamia, commanding the Syrian frontier. Salchah is in the Hauran. See p. 30, note 5. On the right bank of the Euphrates, nearly opposite to Rakka, was Thapsacus. Here Cyrus forded the river, and here Alexander crossed in pursuit of Darius.