A question what reading are you talking about?
The period that started 4000 b.c. is important because it is the period when the earliest civilizations flourished and inventions were made. Earliest known civilization arises in Sumer (4500–4000 B.C.<span>). Earliest recorded </span>date<span> in Egyptian calendar (4241 B.C.). Hope this answers the question. Have a nice day.</span>
Answer: the arrangement between two countries by which each has representatives in the other country
scientific polls
scientific polls are the best way
The nomads used them to transport their loads and thus save themselves during desert journeys in Africa and the Middle East. Due to its endurance and ability to conserve water, the camel is the most suitable means of transport in the desert
