Answer:
Modern scholars generally turn to Herodotus's own writing for reliable information about his life,[3]: 7 supplemented with ancient yet much later sources, such as the Byzantine Suda, an 11th-century encyclopedia which possibly took its information from traditional accounts. Still, the challenge is great:
The data are so few – they rest upon such late and slight authority; they are so improbable or so contradictory, that to compile them into a biography is like building a house of cards, which the first breath of criticism will blow to the ground. Still, certain points may be approximately fixed ...