Europeans brought illnesses from Europe that they had built up a tolerance to but the Native Americans hadn't. Europeans They used their advancements to take over land that they then claim to be theirs. On the other hand, these foreigners brought their manufactured goods that the Natives took interest in so they traded things such as furs for factory made goods. The native also imparted knowlage of skills learned from living off the land to the Europeans.
Europeans carried a hidden enemy to the Indians: new diseases. Native peoples of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians.
