Researchers lay out first genetic history of Rome

Scholars have been studying Rome for hundreds of years, but it still holds some secrets—for instance, relatively little is known about the ancestral origins of the city's denizens. Now, an international team led by researchers ...

Not to scale? Maya civilizations show strange correlation

Researchers who study urban areas have long observed a connection between size and proximity—namely, that cities become more dense as they gain in population. The more people live in a place, the closer together they live ...

How do religious ideologies spread?

Over the last 2000 years Christianity has grown from a tiny religious sect to the largest family of religions in the world. How did Christianity become so successful? Did Christianity spread through grass-roots movements ...

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