When did humans first learn to count?
The history of math is murky, predating any written records. When did humans first grasp the basic concept of a number? What about size and magnitude, or…
Tag: culture
2,000-Year-Old Tattoo Tool Found in a Washington Storage Closet
A 2,000-year-old wooden implement with black-tipped cactus spines is now the oldest example of a tattoo tool in western North America, a discovery that’s shedding important new…