A four-part survey of the human adventure.

With the evolution of human consciousness, nature has finally become conscious of itself. It has taken eons of time, this lumbering progress through the minds o

Who invented beds? When did we start cleaning our teeth? How old are wine and beer? Which came first: the toilet seat or toilet paper? What was the first clock?

A 15-year-old girl in Cleveland has an affair with an older man, her mother's friend. Years later the emotional fallout will echo in unexpected ways through the

Some 250 million years ago, the earth suffered the greatest biological crisis in its history. Around 95 percent of all living species died out—a global catast