Cuneiform inscriptions and bas-reliefs have been found at the sources of both the western and eastern Tigris, as well as at various points on the cliffs along the upper course of both branches.
Synods were held in 1718, 1723, 1726 and 1727; and in a remote spot in Bas Languedoc in 1 744 a national synod assembled - the first since 1660 - which consisted of representatives from every province formerly Protestant.
Its most important feature is a large stucco bas-relief, occupying a central position on the back wall of the sanctuary.
C. Kervyn de Lettenhove, Relations politiques des Pays-Bas et de l'Angleterre sous le regne de Philippe II.
Mendota, Commentaires memorables des guerres de Flandres et Pays-Bas, avec une sommaire description des Pays-Bas 1567-1577 (1591); F.