One of the reasons is that they didnt develope immunities against the Old World epidemic diseases such as smallpox, influenza, mumps, yellow fever or measles. The disease spread more rapid than the immigrants in some areas.
the introduction of disease by contact with Europeans
diseases introduced by the spanish
disease
Diseases brought from Europe for which they had no immunity.
The introduction of diesease by contact with Europeans
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1850
On the contrary; most Native American population resides on the southern states of Mexico.
Smallpox
The population decreased because of the desises
The decline of the native population in early American history was war with the settlers. The settlers forced them to move from their land and many of them died.
native americans baby
The existing central American population
New Mexico.
Mexico and Peru.