A 2020 genetic study in Nature found Native American ancestry in several Polynesian peoples, traced to a contact around 1150–1230 CE, probably with populations related to those of present-day Colombia. The sweet potato, native to South America, was already grown in Polynesia before Europeans arrived. The Pacific was no barrier.
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.