Context: However, some scholars contest the idea of a Proto-Euphratean language or one substrate language. It has been suggested by them and others, that the Sumerian language was originally that of the hunter and fisher peoples, who lived in the marshland and the Eastern Arabia littoral region, and were part of the Arabian bifacial culture. Reliable historical records begin much later; there are none in Sumer of any kind that have been dated before Enmebaragesi (c. 26th century BC). Professor Juris Zarins believes the Sumerians were settled along the coast of Eastern Arabia, today's Persian Gulf region, before it flooded at the end of the Ice Age.

Question: Some scholars contest that there was only one what?
Answer: substrate language

Question: Who do some scholars think the Sumerian language originally belonged to?
Answer: hunter and fisher peoples

Question: Where did the original Sumerians live?
Answer: marshland

Question: What culture did the peoples who would be called Sumerian have a part in?
Answer: Arabian bifacial

Question: When were the earliest historical records of Sumer?
Answer: 26th century BC

Question: What language is believed to have started among nomadic people?
Answer: Unanswerable

Question: What people lived in river region of Arabia?
Answer: Unanswerable

Question: Who was king in the 2600's BC?
Answer: Unanswerable

Question: Who believes the Sumerians lived in the area of modern Persia?
Answer: Unanswerable