The Fertile Crescent () is a crescent-shaped region in the Middle East, spanning modern-day Iraq, Syria, Lebanon, Israel, Palestine and Jordan, together with the northern region of Kuwait, southeastern region of Turkey and the western portion of Iran. Some authors also include Cyprus and Northern Egypt. The Fertile Crescent is believed to be the very first region where settled farming emerged as people started the process of clearance and modification of natural vegetation to grow newly domesticated plants as crops. Early human civilizations such as Sumer in Mesopotamia flourished as a result. Technological advances in the region include the development of agriculture and the use of irrigation, of writing, the wheel, and glass, most emerging first in Mesopotamia. Terminology The term "Fertile Crescent" was popularized by archaeologist James Henry Breasted in Outlines of European History (1914) and Ancient Times, A History of the Early World (1916). He wrote: There no single term for this region in antiquity. At the time that Breasted was writing, it roughly corresponded with the territories of the Ottoman Empire ceded to Britain and France in the Sykes–Picot Agreement. Historian Thomas Scheffler has noted that Breasted was following a trend in Western geography to "overwrite the classical geographical distinctions between continents, countries and landscapes with large, abstract spaces", drawing parallels with the work of Halford Mackinder, who conceptualised Eurasia as a 'pivot area' surrounded by an 'inner crescent', Alfred Thayer Mahan's Middle East, and Friedrich Naumann's Mitteleuropa. In current usage, the Fertile Crescent includes Israel, Palestine, Iraq, Syria, Lebanon, Egypt, and Jordan, as well as the surrounding portions of Turkey and Iran. In addition to the Tigris and Euphrates, riverwater sources include the Jordan River. The inner boundary is delimited by the dry climate of the Syrian Desert to the south. Around the outer boundary are the Anatolian and Armenian highlands to the north, the Sahara Desert to the west, Sudan to the south, and the Iranian plateau to the east. Biodiversity and climate As crucial as rivers and marshlands were to the rise of civilization in the Fertile Crescent, they were not the only factor. The area is geographically important as the "bridge" between North Africa and Eurasia, which has allowed it to retain a greater amount of biodiversity than either Europe or North Africa, where climate changes during the Ice Age led to repeated extinction events when ecosystems became squeezed against the waters of