Helped them calculate the flood.
Answer:
Relaxing the rules
It was a slap in the face for Jewish tradition, but it was also the central reason for the rapid spread of Christianity. As the Christian movement began to accept non-Jewish members, it moved further away from the strict rules imposed on Jews.
Explanation:
The Germanic General that seized control of Rome was Odoacer
I would say it's mostly climate, as it determines two things: 1) what can grow/live in a given place and 2) how long can the products be kept
Additionally, it's the closeness to such things as water sources where you can fish and trade routes: a lot of European cuisines include cofee products, even if cofee is not grown in Europe!