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.
Answer:
Arkham. that is where both the penguin and the joker were placed
I think that it Algonquin
good luck
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