The Spinal Nerves Description There are thirty-one pairs of spinal nerves. These nerves are mixed, having both a sensory and a motor aspect. Their motor fibers begin on the ventral part of the spinal cord at the anterior horns of the gray matter.
1871 - The Ottomans take control of the province of Hasa. 1891 - The Al Saud family are exiled to Kuwait by the Rashidi family. 1902 - Abd-al-Aziz (often known as Ibn Saud) takes control of Riyadh bringing the Al Saud family back into. Saudi Arabia. 1912 - The Ikhwan (Brotherhood) is founded based on Wahhabism; it grows quickly and provides key support. for Abd-al-Aziz.
Today that area includes the regions that make up the Republic of Yemen (RY), which was formed in 1990 when the Yemen Arab Republic (YAR, or North Yemen) with its capital in Sana'a, and the People's Democratic Republic of Yemen (PDRY, or South Yemen), with its capital in Aden, were unified.istory and Ethnic Relations. Emergence of the Nation. The ancient walled city Sana'a is said to be the oldest city in the world, founded by Noah's eldest son, Shem, the forefather of Qahtan. Bilqis, the Queen of Sheba (Saba), is mentioned in the Bible and the Koran.