Lower Mesopotamia Lower Mesopotamia Lower Mesopotamia is a historical region of Iraq. Also known as the Sawad and al-'Irāq al-'Arabi ("Arabian Irāq") in the Middle Ages. Lower Mesopotamia was home to ancient Sumerian and Babylonian civilisations. An alluvial plain begins north of Baghdad and extends to the Persian Gulf. Here the Tigris and Euphrates rivers lie above the level of the plain in many places, and the whole area is a river delta interlaced by the channels of the two rivers and by irrigation canals. Intermittent lakes, fed by the rivers in flood, also characterize southeastern Iraq. A fairly large area ()
Rye Country Day School a group of parents bought the Seminary in 1917 and established it as a nonprofit day school under the direction of a Board of Trustees. The year 1921 saw the Seminary merge with a boys' school from nearby Harrison, the Rye Country School, and became known as the Rye Country Day Schools. In 1928, the "s" was dropped from the word "Schools". At this time, the School offered a program for girls from kindergarten through grade twelve, and a program for boys from kindergarten through grade nine. In 1964 this pattern of organization was changed when the Board of Trustees