Answer:
They both created accurate calendar.
Explanation:
Cuneiform is one of the earliest writing system developed in Mesopotamia. The Maya calendar based on the Sun, the Pleiades star groups, the Moon, and other planets. The Mayan and ancient Mesopotamian civilizations both had calendars.
The person that had the idea was Aldof Hitler.Hope that answers your question :)
I think a. the ban on slavery was blamed for slow economic growth , and slavery became legal in 1750.
