Most woolly mammoths died out around 10,000 years ago, but a small population hung on until about 4,000 years ago on Wrangel Island in the Arctic Ocean. The Great Pyramid of Giza was completed roughly 4,500 years ago. For several centuries, mammoths and pyramid builders shared the same planet.
Around 2300 BCE, Enheduanna, daughter of King Sargon of Akkad, became high priestess of the Moon god at Ur. She composed hymns to the goddess Inanna and put her name to them. She is the oldest person identified as the author of a literary work, about 1,500 years before Homer.
Squeeze Earth's 4.5 billion years into a single 24-hour day. Homo sapiens shows up around 11:59:54 p.m., roughly six seconds before midnight. All of written history, from Sumerian tablets to today, fits into the final tenth of a second. A cosmic blink.