When you or someone you are caring for is seriously ill, it is recommend that you keep EOBs for five years after the illness or condition is alleviated. If you or the patient is claiming or has claimed a medical deduction, keep the explanation of benefits for seven years.
The earliest writing can be traced to Sumer, in Mesopotamia. This system did not use an alphabet, instead it used pictographs which are symbols representing familiar objects. This type of writing was called cuneiform, or wedge-shaped writing. Egyptians used hieroglyphics, also a pictograph system.
In ancient Mesopotamia, also known as the Fertile Crescent, the  writing system they utilized was called cuneiform which came about  in the late 4th millennium BC in Sumer. â¦Cuneiform preceded  hieroglyphs, which was the writing system utilized by the ancient  Egyptians.