Always keep in mind who is writing a history and why.
“Herodotus’ work is the construction of a Greek identity. By and large, prior to the Persian wars – and prior to Herodotus’ own writings – the Greeks do not seem to have broadly considered themselves one people. One was an Athenian, or a Theban, or what have you, far more than one was a Greek. By building a contrast with the strange customs of other lands, Herodotus emphasizes the sameness of Greek customs – the unity which will, in the climax of the tale, focused on the Persian Wars, prove decisive. So he is creating a Greek identity through contrasts”
https://acoup.blog/2020/02/07/collections-the-fremen-mirage-part-iiia-by-the-princess-irulan/