<span>d. meeting participation requirements each week</span>
Summerian writing is very important in the history of the world, as it it possibly the first writing system ever: Cuneiform. Cuneiform was composed of lines with triangles at the end, which was influenced by the medium of their writing: a clay tablet.
The summerian irrigation was also a first (or one of the first). The system was based on digging a hole in a river's bank and then filling it in when needed.
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where is the image I can't see it
I only know six hope it help
Gorilla Warfare. It is irregular warfare where small groups of men ambush, sabotage, and hit and run tactics.