question #3 Sahih al-Bukhari 7541, Book 97, Hadith 166 : What role did translators play in the communication between different cultures during the time of the Prophet Muhammad (ﷺ)?

Abu Sufyan bin Harb told me that Heraclius called for his translator and then asked for the letter of the Prophet (ﷺ), and the former read it (thus):”In the Name of Allah, the Most Gracious, the Merciful. (This letter is) from Muhammad bin ‘Abdullah, to Heraclius. “…O people of the Scripture (Jews and Christians): Come to a word that is just between us and you that we worship none but Allah…” (V.3:64)