Though we might be enjoying the fruits of technology and development of new devices and methods, several societies lived just as comfortably as we do now, given their social, cultural, and economic contexts. They had what they need and much more, so we can say that they aren't as undeveloped in relation to their contemporaries.
Five hundred years ago, this swath of northern California was populated by the Ohlone peoples, about 10,000 of whom lived in the stretch of land that we call the San Francisco Bay Area. So rich in plant and animal life was this region that the Ohlone were able to survive without farming or animal domestication; indeed, western explorers, when they eventually arrived, were amazed at the quantity of wild animal life.
Of course, everything changed once the colonizers, Spanish missionaries, arrived in America and began forcibly trying to convert the people. What followed is a struggle between the Western concept of civilization and the existing system of the peoples they occupied.
(Image credit: Wikimedia Commons)