Welsby said that "archaeology graphically confirms some of Herodotus' observations".[56] A.H.L. Heeren (1838) quoted Herodotus throughout his work and provided corroboration by scholars of his day regarding several passages (source of the Nile, location of Meroe, etc.).[57] To further his work on the Egyptians and Assyrians, Aubin uses Herodotus' accounts in various passages and defends Herodotus' position against modern scholars.