what were the most important factors that allowed the Europeans to defeat the native americans in 1450-1620?

Answer 1

Better tech - wheel, guns, communication(roads, writing), etc
New desieses - smallpox, etc
That fact that the natives often sided with the Europeans
But, even if these were more evened out - the Europeans were better organized, worked as groups (within nations), and had constant colonists coming over... meanwhile the natives (except the aztecs) worked as tribal units only, and had no cohesive plan among them for repelling the Europeans -this goes back to the communication problem earlier.

Answer 2

* Superior technology (guns and gunpowder, specifically).
* Horses (for faster travel and for fighting)
* Germs (the Europeans brought all sorts of germs to which the Natives did not have natural immunities)
* Superstition (many of the Natives had superstitions or legends predicting a great conqueror from the East)
* Help of Natives (some Natives sided with the Europeans)

Answer 3

#1: disease
#2: sickness
#3: illnesses
The natives lived the cleanest, longest lives any where in the world until the invasion. More than 20,000,000 of them died because of the diseases introduced by Europeans and Africans; then, later by Asians.
While peoples from Spain and the British Isles through their slops into the street, the natives lived a clean life.
For every native killed by a bullet, sword, knife, whatever, thousands died from disease. Even the Mandans in North Dakota were almost completely wiped out in the late 1700's by disease, long before any of them had any direct contact with whites.
The natives had a well-established trade route that extended coast-to-coast, from Canada throughout Mexico and Central America. So, if the traders came into contact with any diseased white person, they could wipe out entire villages.

Answer 4

Biological diseases like Smallpox, Typhus, Malaria and TB. Also guns were a psychological weapon. The loud sound scared the natives. Swords were important too cus they were used more often than guns. Steel could break a Mayan, Incan, Aztec or Natchez weapon

Answer 5

Guns, germs, and steel.

This is also the title of a book by Jared Diamond which gives a great explanation of how and why the world is populated the way it is, and how the wealthy nations of the world came to build and maintain their privileged status.

Answer 6

guns