Summary

David Heinrich Müller Encyclopædia Britannica, Ninth Edition…

Map of Yemen.
Sabæans.—The ancient name of the people of Yemen was Saba (Saba’ with final hemza) ; and the oldest notices of them are in the Hebrew Scriptures. The list of the sons of Joktan in Gen. x. 26–29 contains in genealogical form a record of peoples of South Arabia which must rest on good information from Yemen itself. Many of these names are found on the inscriptions or in the Arabic geographers,—Sheba (Saba’) , Hazarmaveth (Ḥaḑramaut) , Abimael (Abime‘athtar) , Jobab (Yuhaibib, according to Halévy) , Jerah (Waráḥ of the geographers) , Joktan (Arab Ḳaḥtan; waḳata = ḳaḥata) .
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David Heinrich Müller Encyclopædia Britannica, Ninth Edition…

Thus we can understand how in Gen. xxv. 2–3 Sheba and Dedan appear among the North-Arab “sons of Keturah.” Again, the Sabæans had colonies in Africa and there mingled with the black Africans; and so in Gen. x. 7 Sheba and Dedan, the sons of Raamah (Raghma) , appear in the genealogy of the Cushites. With the Ethiopians Saba’ means “men,” a clear indication of their Sabæan descent.
The queen of Sheba who visited Solomon may have come with a caravan trading to Gaza, to see the great king whose ships plied on the Red Sea.
Source: Wikisource

David Heinrich Müller Encyclopædia Britannica, Ninth Edition…

Their commerce brought the Sabans under Christian and Jewish influence, and, though the old gods were too closely connected with their life and trade to be readily abandoned, the great change in the trading policy, already spoken of, seems to have affected religion as well as the state. The inland gods lost importance with the failure of the overland trade, and Judaism and Christianity seem for a time to have contended for the mastery in South Arabia.
Source: Wikisource

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