Interpretation, which deals with the spoken word, obviously preceded translation which is concerned with the written word and could only have followed the development and spread of literacy. Interpretation in ancient Egypt goes back to 3000 BC when we find what seems to be the earliest hieroglyphic believed to mean ‘interpreter’(a)(b).
J.V. Luce informs us[120.23] that one of the Saite pharaohs, Psammetichus I (c.664-610 BC), established a school for interpreters, which possibly had its services availed of by Solon during his visit there.
*(a) https://www.vcinterpreting.com/09/it-didnt-start-off-glamorous/ (offline July 2019)