It ended with the destruction of the Abbasid caliphate when hugelu khan sacked Baghdad in 1258
Answer:
This innovation greatly increased crop yields simply by inserting the seeds into the ground. ... Both of these major innovations helped in overall agricultural productivity.
Answer: One by one, the Classic cities in the southern lowlands were abandoned, and by A.D. 900, Maya civilization in that region had collapsed. Finally, some catastrophic environmental change like an extremely long, intense period of drought–may have wiped out the Classic Maya civilization.
Explanation: