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.
Archaic Sumerian is the earliest stage of inscriptions with linguistic content, beginning with the Jemdet Nasr (Uruk III) period from about the 31st to 30th centuries BC. It succeeds the proto-literate period, which spans roughly the 35th to 30th centuries.he cuneiform script is adapted to Akkadian writing from the mid third millennium. Our knowledge of Sumerian is based on Akkadian glossaries. During the  Sumerian Renaissance  (Ur III) of the 21st century BC, Sumerian is written in already highly abstract cuneiform glyphs directly succeeded by Old Assyrian cuneiform.