History loves a good mystery. And honestly, few things are more unsettling than an entire civilization, with millions of ...

Add Yahoo as a preferred source to see more of our stories on Google. One of history's biggest questions is: "How does an entire civilization disappear?" One can comprehend how an object or even a ...

INDIANA, USA — What a sight it must have been in ancient times to see a total solar or lunar eclipse. Over the centuries, astronomers were able to predict days of when eclipses would happen, and now ...

Roman, Egyptian, and Chinese civilizations had many different ingenious inventions. Chocolate was a big aphrodisiac for Mesoamerican civilizations and used for energy. The first earthquake detector is ...

Civilizations have recognized the power of cities to heat themselves up and cool themselves for centuries. City architects in ancient Rome called for narrowing streets to lessen late afternoon ...