- "In the Amarna Letters, a diplomatic correspondence written on clay tablets and discovered in a royal archive in the south of Egypt, there is a list of gifts sent by King Tushratta of Mitanni in Anatolia, to Pharaoh Amenhotep III, Tutankhamun’s grandfather of Ancient Egypt when he married Princess Tadukhipa, the daughter of Tushratta. Among the gifts mentioned in the list is a dagger with an iron-made blade. The research of Arai’s team states that this is very likely to be the same dagger for two main reasons..."