The map supports the logic that the Black Death spread so fast due to (B) the spread of rodents through trade.
The Black Death was one of the most deadly pandemics to ever affect Europe and it was carried from Asia to Europe by rodents on the vessels used for trading such as ships and carriages.
This map supports this theory because:
- Areas that were infected first were on maritime trade routes which means that the rodents came on ships and infected them
- Areas affected later were on land trade routes which means that rodents eventually got to them after overland trade
- Areas with little access to trade routes were infected last
In conclusion, the Black Death was able to spread quickly because the rodents that carried them spread across the continent through trade.
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