Europeans unintentionally passed on the diseases to native Americans and they didn't have any resistance to to those diseases.
In turn, Native American demand influenced the trade goods brought by Europeans. Economic contact between Native Americans and European colonists began in the 16th century and lasted until the late 19th century. Eventually, wars, the dwindling of Native American populations and the westward expansion of the United States led to the confinement of tribes to reservations and the end of this kind of economic relations between Indians and European Americans. As Native Americans were pressed into alliances by the Europeans for Queen Anne's War, the Seven Years' War, the Nine Years' War, and other standing competitions among the European powers: France, Great Britain and Spain, with whom they were dealing in North America, they felt drawn into the Europeans' endemic warfare. Eventually, wars, the dwindling of Native American populations and the westward expansion of the United States led to the confinement of tribes to reservations and the end of this kind of economic relations between Indians and European Americans. As the English, French, and Spanish explorers came to North America, they brought tremendous changes to American Indian tribes. 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. The great impact of disease on the Native population of America is an important part of the story of European exploration. Experts believe that as much as 90 percent of the American Indian population may have died from illnesses introduced to America by Europeans. (– promoted by navajo). There were an estimated 18 million Native Americans living north of Mexico at the beginning of the European invasion. Prior to the arrival of the Europeans, American Indians were remarkably free of serious diseases. People did not often die from diseases. As the European explorers and colonists began to arrive, this changed and the consequences were disastrous for Native American people. The death tolls from the newly introduced European diseases often reached 80-90 percent.  In the United States, Native Americans are considered to be people whose pre-Columbian ancestors were indigenous to the lands within the nation's modern boundaries. These peoples were composed of numerous distinct tribes, bands, and ethnic groups, and many of these groups survive intact today as sovereign nations. After the thirteen colonies revolted against Great Britain and established the United States of America, President George Washington and Henry Knox conceived of the idea of civilizing Native Americans in preparation for assimilation as U.S. citizens. William Brisby. The Native American worldview was drastically different from the European American worldview when the two cultures first met. In 1492 Columbus landed in North America and created the first contact between Native Americans and Europeans. Thus began diplomatic negotiations over territory which will become the United States of America. Some Native Americans believed fair skinned Europeans to be some kind of demon. Each of these misconceptions about the other is directly caused by each of the two group’s worldviews. As we see in the course of US history the misconceptions keep rolling in from 1492 to present shaped by conflicting The Native American death rate from disease (1/3-1/2 population) similar to that of European children (that 's why Europeans had so many children). These diseases killed millions of Native Americans, terrorized survivors, and paralyzed normal social and political relations.  Making the world better, one answer at a time. Well, Europeans and Native American had a bloody war. So thousands and thousands died. So they needed to move to a another part in America. With diseases which Europeans brought unintentionally with them and  Native Americans didn't have any resistance to them.   More technologically advances weaponry, gunpow … der using handguns,  and cannons.   Metals, like iron, which was unknown to the Native Americans, armor  made out of iron and steel Horses, war dogs, animals that native Americans haven't seen before  Europeans came.   And with betrayal, allying with many weak Native American tribes to  defeat the strong empires of South America, and then defeating  their previous allies too. With diseases which Europeans brought unintentionally with them and  Native Americans didn't have any resistance to them.   More technologically advances weaponry, gunpow … der using handguns,  and cannons.   Metals, like iron, which was unknown to the Native Americans, armor  made out of iron and steel
https://en.wikipedia.org/wiki/Indian_Trade https://en.wikipedia.org/wiki/Indian_Trade http://ncpedia.org/history/early/contact http://nativeamericannetroots.net/diary/325 https://en.wikipedia.org/wiki/Native_Americans_in_the_United_States http://www.inquisitr.com/1207105/native-american-and-european-american-worldviews-collide/ http://people.umass.edu/hist383/class%20notes/european%20pathogens.htm http://www.answers.com/Q/What_did_the_Europeans_do_to_the_Native_Americans http://www.answers.com/Q/What_did_the_Europeans_do_to_the_Native_Americans
what europeans did to native american