These are the kingdoms of Ma t in (Minaean), of Saba (Sabaean), of Hadramaut (Hadramut) and of Katabania (Katabanu).
The 19th century has brought to the museums of Europe (especially to aondon, Paris, Berlin and Vienna) a number of inscriptions in the languages of Minea and Saba, and a few in those of Hadramut and Katabania (Qattabania).
The second period begins about 550 B.C. The rulers are known as " kings of Saba."
The connexion of Saba with the north, where the Nabataeans had existed from about zoo B.C., was now broken.
Hommel, maintaining that their kingdom existed prior to that of Saba, probably from about 1500 B.C. or earlier until the Sabaeans came from their home in the north and conquered them in the 9th century.