By Natural Philosopher Mike Prestwood

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Master Timeline

Plate Tectonics

By dating rocks and fossils scientists can document the movement of the continents over time.  To confirm and refine this science, geologists study rocks, paleontologists study fossils, and anthropologists study human societies, cultures, and relics. The location and dating of rocks, fossils, and relics allow us to understand the distant past. Cynognathus, circa 242 million

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Spiral strands of DNA on the dark background

“The” Human DNA

2,400 Generations Ago The modern human DNA evolved sometime between 71,000 and 51,000 BCE. Imagine that. A human baby born today, and a human baby born in 60,000 BCE have nearly indistinguishable DNA. There are differences but essentially humans are the same now as they were then. The popular website 23andme.com focuses on 23 changes in

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Hyoid Bone: Speach Emerges

Around 700,000 years ago, the development of a human-like hyoid bone suggests early hominins may have begun transitioning from simple vocalizations to more structured speech. This period marks a critical evolutionary point for Homo heidelbergensis, whose anatomical adaptations for speech, coupled with advanced tool use and complex social structures, indicate possible use of rudimentary language.

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St Geaorge Monastery Desert

Jericho Founded

360 Generations Ago Earliest known permanent settlement in the Africa/Middle East zone.  Jericho, located in the West Bank, Palestinian Territories, stands as one of the earliest known permanent settlements in the Africa/Middle East zone, with continuous habitation dating back to at least the 9th millennium BCE. Situated near an oasis in the Jordan Valley, Jericho’s

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Iodine 131(I-131)Radioactive isotopes used for hyperthyroidism treatment are stored in Lead boxes

Radiometric Dating

5 Generations Ago In 1905, radiometric dating was discovered. It is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes. This technique is used to date rocks. Paleontologists regularly order discoveries in chronological order and estimate their age. Knowing the age of rocks allows paleontologists to assign known

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We all need a little CAFFEINE

Radiocarbon Dating

In 1946, Willard Libby created the method for dating organic materials by measuring their content of carbon-14, a newly discovered radioactive isotope of carbon. This dating technique provides objective age estimates within a few decades for carbon-based objects that originated from living organisms.

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Native Americans Citizenship

Congress granted citizenship to all Native Americans born in the U.S. Until 1924, Native Americans were not citizens of the United States. Many Native Americans had, and still have, separate nations within the U.S. on designated reservation land. Even after the Indian Citizenship Act, some Native Americans weren’t allowed to vote because the right to

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