Imagine a world where the United States never existed as a single nation. Instead of one country stretching from the Atlantic to the Pacific, North America is divided into dozens of powerful ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers have discovered that the North American continent is slowly losing rock from its underside in a process called ...

Growing up, most of us learned that Earth is home to seven continents. But it may be time to rewrite the geography textbooks, as a controversial study now claims there are actually only six continents ...

Researchers have discovered that the underside of the North American continent is dripping away in blobs of rock—and that the remnants of a tectonic plate sinking in Earth's mantle may be the reason ...

So many books have been written about the European exploration and conquest of North America that it’s too easy to approach Peter C. Mancall’s newly published “Contested Continent” with an exasperated ...

The label applies to the country, but also two whole continents. Our claim over it is yet another way for us to annoy the entire hemisphere. By Nitsuh Abebe What is an American? Not in some ...