How the First People Got to the Interior of North America   Most researchers believe that the first people to come to North America came from Asia to what is no...

TF阅读真题第705篇Freehold Society in Colonial New England

TF阅读真题第820篇The Greek City-States_ Sparta and Athens

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The Early Iron Age     During the Bronze Age (roughly 3300-1200 B.C.E. in the Middle East), civilizations were limited in their use of iron. Most iron occurred not in ...

TF阅读真题第839篇Money in the European Middle Ages

  Migratory birds are well known to navigate over long distances between feeding grounds and breeding sites, often over thousands of miles. Ornithologist G. V. T. Matthews dem...

TF阅读真题第791篇Pollen Gathering by Animals

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TF阅读真题第719篇Did a Volcano Destroy the Minoan Civilization?