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Thomsen came up with this idea after noticing that the artefacts found in archaeological sites displayed regularity in terms of the material that they were made with: stone-made tools were always found in the deepest layers, bronze artefacts in layers on top of the deepest layers, and finally iron-made artefacts were found closest to the surface.
This suggested that metal technology developed later than stone-made tools.
The new study adds to archaeological evidence that Native Americans are descendants of humans that migrated from Asia through Siberia, and thrived across North America 13,000 years ago.
From the dawn of our species to the present day, stone-made artefacts are the dominant form of material remains that have survived to today concerning human technology.
The term “Stone Age” was coined in the late 19th century CE by the Danish scholar Christian J.
In 1619, the Dutch introduced the first captured Africans to America, planting the seeds of a slavery system that evolved into a nightmare of abuse and cruelty that would ultimately divide the nation.
Slavery in America began when the first African slaves were brought to the North American colony of Jamestown, Virginia, in 1619, to aid in the production of such lucrative crops as tobacco.