There are over 7 billion people living on the earth right now. Tens of millions are born and die each year. Every single one of us leaves signs of our existence in the air, water, soil -- even space.

The first human migrations out of Africa are thought ... are considered part of the same vast civilization, the Indus Valley Civilization, which thrived from 2600 to 1900 BCE.

The development of civilization brought a new standard of living to human societies, but it also brought problems such as warfare, environmental degradation and disparity of wealth. Looking at the ...

Of all the known history in the area, however, one question remains – when did the first humans call the area ... the mound builders were a civilization that existed during the “woodland ...