what is the earliest written language
A cuneiform letter from a Sumerian queen to her king, dating from the third millennium BC. The earliest language was that developed in the  fertile crescent , which is modern-day Iraq. The Sumerian and Babylonian civilizations which lived there developed a writing system known as cuneiform.editerranean. Some of the oldest non-Egyptian writing systems in the Mediterranean are still undeciphered. Likely from the Minoan civilization, these scripts, known as Linear A and Linear B, are very similar to ancient Greek and obviously had a strong influence on the development of it.