Which events contributed to the start of germanic migrations?

Which events contributed to the start of germanic migrations?

Answer:

Scholars have debated the root cause of the Germanic migrations of the 5-8th centuries into the Mediterranean for centuries. Some postulate that it was due to the invasion of the Huns, who slowly pushed the Gothic people westward which forced a migration into the Roman Empire. Others suggest that it occurred due to a sharp rise in the population of these peoples and that a shortage of land and resources forced these people to migrate westwards. Others theorize that it may have began due to a long period of extreme climate in Eastern Europe which led to severe crop failures and the need for these people to relocate into other regions to survive. In all, it was most likely a combination of these effects that caused such a large and long period of migration.