Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
It was there probably that men first followed the course of the stars; it was there that they first distinguished and expressed in writing the sounds of language; it was there that they began to reflect on time and space and on the powers at work in nature: the earliest traces of astronomy and chronology, of the alphabet, and of weights and measures, point to that region.
The Phoenicians doubtless availed themselves of the artistic and highly developed manufactures of Babylon for their industry, of the observation of the stars for their navigation, of the writing of sounds and the adjustment of measures for their commerce, and distributed many an important germ of civilization along with their wares; but it cannot be demonstrated that the alphabet or any other of those ingenious products of the human mind belonged peculiarly to them, and such religious and scientific ideas as they were the means of conveying to the Greeks were scattered by them more after the fashion of a bird dropping grains than of the husbandman sowing his seed.
The power which the Greeks and even the Italians possessed, of civilizing and assimilating to themselves the nations susceptible of culture with whom they came into contact, was wholly wanting in the Phoenicians. In the field of Roman conquest the Iberian and the Celtic languages have disappeared before the Romanic tongue; the Berbers of Africa speak at the present day the same language as they spoke in the times of the Hannos and the Barcides.
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Reference address : https://www.ellopos.net/elpenor/rome/3-01-carthage.asp?pg=4