Final answer:
European colonization had a significant impact on Native American tribes, particularly through the introduction of diseases.
Step-by-step explanation:
European colonization had a significant impact on Native American tribes, particularly through the introduction of diseases. The lack of immunity among Native Americans led to devastating epidemics, causing a significant decline in their population. Historians estimate that Native American populations dwindled from approximately 12 million people in the year 1500 to barely 237,000 by the year 1900.