638, Beroea disappears, and as Moslem society settles down Halep emerges again as the great gathering-place of caravans passing from Asia Minor and Syria to Mesopotamia, Bagdad and the Persian and Indian kingdoms. Like Antioch it suffered from earthquakes, and late in the 12th century, after a terrible shock, had to be rebuilt by Nur ed-Din.
The trade is chiefly concentrated at Urga, Ulyasutai and Kobdo in north-west Mongolia; Kalgan, Kuku-khoto, Kuku-erghi, Dolon-nur and Biru-khoto in southern and south-eastern Mongolia; and at Kerulen in the north-east.
He was a dissolute ruler, much addicted to drunkenness, and his reign is chiefly notable for the influence enjoyed by his wife Nur Jahan, "the Light of the World."
This belief may be called what Loofs has called Harnack's definition of dogma - individuell berechtigt, and perhaps nur individual.
The sovereign is "Absolut unabhangig and nur durch sich selbst beschrankt and beschrankbar" (Zorn, V olkerrecht, p. 4.