CEVAP:

Another set of documents which are directly concerned with diplomacy includes the Amarna letters, dating back to the second half of the second millennium (15th to 13th centuries BCE). These letters were first found in Egypt (El-Amarna), Syria (Ugarit), Babylonia and Hittite Anatolia first in 1887. The known tablets are currently 382 in
number. These letters, written on clay tablets and exchanged between Egyptian pharaohs and their Babylonian, Assyrian and Anatolian counterparts, give valuable information about diplomatic relations of this period.