The Emirate of Transjordan (إمارة شرق الأردن '), also hyphenated as Trans-Jordan and previously known as Transjordania or Trans-Jordania''', was a British protectorate established in April 1921. There were many urban settlements beyond the Jordan River, one in Al-Salt city and at that time the largest urban settlement east of the Jordan River. There was also a small Circassians community in Amman. ξ1 http://www.roughguides.com/destinations/middle-east/jordan/amman/circassians/
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. The word "diameter" is derived from Greek language διάμετρος ( diametros), "diameter of a circle", from δια- ( dia-), "across, through" μέτρον ( metron), "measure". Online Etymology Dictionary It is often abbreviated ..
A circle is a simple closed shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.
