The Middle East spans a large territory including Saudi Arabia, Egypt, Israel, Iraq, Iran and Turkey. It has been an important crossroads for trade and religion throughout history as the birthplace of Christianity, Judaism and the origins of the modern English alphabet and numbering system. The geography of the region, including deserts, mountains and coastlines, has significantly impacted its history by influencing the locations of major settlements near water and enabling the spread of trade and religion across great distances. The Arab people have historically lived as nomadic Bedouins or in oasis towns and villages, with trade and camel domestication playing important roles in their societies.