The question of who were the first people to arrive in the Americas is a subject of ongoing debate and research among archaeologists, anthropologists, and other scholars. The current scientific consensus is that the first humans to migrate to the Americas arrived from Asia via the Bering land bridge, which connected Siberia and Alaska during the last Ice Age.

Based on archaeological and genetic evidence, it is generally believed that the first human presence in the Americas dates back at least 15,000 years ago, although some estimates suggest an even earlier arrival. The earliest known archaeological sites in the Americas are located in Alaska and date back to the Clovis culture, which is known for distinctive stone tools that have been found across North America.

It is important to note that there is ongoing research and debate around the exact timing and routes of human migration to the Americas, as well as the cultural and genetic diversity of the earliest populations. However, the general consensus is that the first humans to arrive in the Americas were likely ancestors of modern Native American populations.
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