Prior to joining the Mercyhurst faculty in 2011, Dausey was a professor at Carnegie Mellon University and the Senior Director of Health Programs and Initiatives at the H. John Heinz III College. Dausey maintains an honorary faculty position at Carnegie Mellon as a Distinguished Service Professor.
Sumerian language. Sumerian language, language isolate and the oldest written language in existence. First attested about 3100 bc in southern Mesopotamia, it flourished during the 3rd millennium bc. About 2000 bc, Sumerian was replaced as a spoken language by Semitic Akkadian (Assyro-Babylonian) but continued in written usage almost to the end of the life of the Akkadian language, around the beginning of the Christian era.
The Sumerian language is one of the earliest known written languages. The proto-literate period of Sumerian writing spans c. 3,300 to 3,000 BC. In this period, records are purely logographic, with no linguistic or phonological content.The oldest document of the proto-literate period is the Kish tablet.rchaic 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.