<span>While many believed that Native Americans were truly their greatest threat, in reality, it was the simple and mundane things like disease and accidents that did the most damage to the travelers. The fact that they traveled so closely together (and without the help of proper modern medicine) it was easier to get sick and without the ability to heal, eventually die from simple diseases such as the common cold. Other ways pioneers could be injured is by buggy turnovers on the steeper areas of hills and mountains which had more of a rocky flooring.</span>
Practically much it organized the whole system and society
Answer: Invasions by Barbarian tribes
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
1. The fact that all Incan architecture shares similar design principles suggests C. unity. - they all wanted to be the same because they were a union
2. The towers of St. Basil's Cathedral in Russia are symbolic of C. eight battles.
3. The Greek arch can typically be seen in all of these, but let's say A. bridges.
I believe that Hernando Cortés built Mexico City.
(Hope this helps you! Feel free to message me if you have any further questions. :) Hope you have a nice day!!)