Social histories are similarly marked by change. The deforestation of the Middle East to build the first cities. The first written laws of civilization, which had to do with the ownership of human and nonhuman slaves. The fabrication of bronze, then iron, the ores mined by slaves, the metals used to conquer. The first empires. Greece and its attempts to take over the world. Rome and its attempts. The conquest of Europe. The conquest of Africa. The conquest of the Americas. The conquest of Australia, India, much of Asia. The deforestation of the planet.
Just as with my own future history, I do not know what the future history of our society will be, nor of the land that lies beneath it. I do not know when the Grand Coulee Dam will come down, nor whether there will still be salmon to reinhabit the Upper Columbia. I do not know when the Colorado will again reach the sea, nor do I know whether civilization will collapse before grizzly bears go extinct, or prairie dogs, gorillas, tuna, great white sharks, sea turtles, chimpanzees, orangutans, spotted owls, California red-legged frogs, tiger salamanders, tigers, pandas, koalas, abalones, and so many others on the brink.
The point is that history is marked by change. No change, no history. And some day history will come to an end. When the last bit of iron from the last skyscraper rusts into nothingness, when eventually the earth, and humans on the earth, presuming we still survive, find some sort of new dynamic equilibrium, there will no longer be any history. People will live once again in the cycles of the earth, the cycles of the sun and moon, the seasons. And longer cycles, too, of fish who slip into seas then return to rivers full of new life, of insects who sleep for years to awaken on hot summer afternoons, of martens who make massive migrations once every several human generations, of the rise and fall of populations of snowshoe hare and the lynx who eat them. And longer cycles still, the birth, growth, death, and decay of great trees, the swaying of rivers in their courses, the rise and fall of mountains. All these cycles, these circles great and small."