by Nate Sheff
Not long ago, I went to the Yale University Art Gallery and saw their collection of Egyptian art. Seeing the dates on some of the pieces, it occurred to me that I had never really considered just how old Egyptian civilization is. I looked up some historical events to get perspective, and learned that I am closer in time to the assassination of Julius Caesar (44 BCE, which is 2,066 years ago) than Julius Caesar was to the construction of the Great Pyramid of Giza (circa 2500 BCE, over 2,400 years before Caesar’s death). Caesar’s death is ancient history, and the building of the Great Pyramid is also ancient history, but – for the sake of perspective here – the Great Pyramid’s construction was also ancient for Julius Caesar. That’s how old Egyptian civilization is.
Four-and-a-half millennia is a long time on a human timescale, but not all timescales are human. A core sample from Methuselah, a bristlecone pine living – alive – in the White Mountains of California, shows the tree to be about 4,800-years-old. By the time they started building the Great Pyramid, Methuselah had already spent a couple centuries photosynthesizing on a mountainside, adding rings but not counting them.
Methuselah is the oldest known non-clonal tree. When we consider trees that can reproduce asexually, say, by growing new individuals from existing root systems, we find organisms like Pando, a colony of genetically-identical quaking aspens in Utah, estimated to be about 15,000-years-old. Pando had been alive for several thousand years before Göbekli Tepe, the site of the earliest known megaliths, appeared in Anatolia.
Think of how many generations of birds might have started their lives in Pando’s branches by then. Read more »