TThe Incas, Mayans, & Aztecs.
Dikota,lotoka,pellow
The three main Indian groups in North America before European explorers arrived were the Eastern Woodland tribes in the East, the Plains tribes in the Midwest, and the Pueblo tribes in the Southwest. Each group had its own distinct cultural practices, languages, and ways of life shaped by their environment.
The three main indigenous tribes that inhabited South America before the arrival of European explorers were the Aztecs, Incas, and Mayans.
Disease. By the time the first colonists arrived, early visits by fishermen and explorers had exposed the natives to European diseases which devastated the populations along the East coast of North America.
When British explorers arrived to North America accross the Atlantic they thought they had arrived in 'India' and called the locals Indians.
Disease introduced by Europeans, such as smallpox and measles, were a major factor contributing to the decline in the Indian population in Latin America. These diseases were new to the indigenous populations and they had little immunity, leading to widespread devastation and death.
Diseases brought by the Europeans, such as smallpox, played a significant role in the decline of the Indian population in Latin America. The indigenous peoples had no immunity to these new diseases, leading to high mortality rates.
The first recorded European to enter Indian soil was Vasco da Gama, a Portuguese explorer, in 1498. He arrived in Calicut (present-day Kozhikode) on the southwestern coast of India.
Spain
After Europeans arrived in Latin America, the indigenous population in areas such as the Caribbean and Central and South America declined due to diseases brought by the Europeans to which the indigenous people had no immunity. Additionally, forced labor, mistreatment, and warfare also significantly contributed to the decline of the indigenous population. Invasion of indigenous lands and displacement also led to a decline in population.
I'm not sure about this,but I don't know