A large part of the universal history that we know was obtained from the Bible
A large part of what we know about one small corner of 'the universal history' was obtained from the Tanakh ─ a corner retrospectively relevant to cultures affected by Abrahamic religion. Even in the 21st century its relevance to India and most of Asia is very slight, for instance.
Some of it is religious folklore, some of it is folk-history and overlaps with real history in places, and some of it is informative of the politics practices and some events of particular times and places. It also gives some insight into the politics and political concerns in some cases.
It derives some its early lore from Semitic Mesopotamia, and that lore was greatly influenced by the lore of the earlier Sumerian culture. It's of interest that Abraham is said to have come from Ur, a Sumerian town with Semitic presences; but that doesn't remove Abraham from the 'legendary' list.
and was verified through documents and pieces unearthed in subsequent excavations in biblical places.
And falsified too, by history and archaeology, of course. Was there a real Abraham? A real Moses? Was there even an Egyptian Captivity? Where is the archaeological record of Solomon's reign? Was he a great king, or a local leader elevated in later stories? We'll find the correct answers in the ground and to some extent in ancient writings.
Although atheists today try to discredit the Bible as a reliable document, modern knowledge and science are based on the Bible and the scientific work of thousands of believing men in the past.
No, we find the roots of Western culture among the Greeks, who following Alexander's conquest were a great influence on the Jewish peoples. Philosophy, maths, literature, art, architecture, ideals of beauty and symmetry, medicine, the interrogating and debating of ideas, even one of the earliest coherent 'description' of the Classical underworld (Plato's '
Myth of Er'). The Christian idea of souls is Greek (the Jewish tradition begin resurrection). Neo-platonism, and the recovery of lost Greek influences via the Muslim empire in Spain, triggered the renaissance, and led in time to the Enlightenment.
So it's not a matter of dismissing the Tanakh and the NT as (quite separate) historical records, which they are of their kind, but of getting the history of our own civilization, and then the history of the world's other civilizations, into perspective.