Around 73,000 years ago, in a cave now known as Blombos, someone took a pointed lump of iron-rich rock—ochre—and dragged its tip across another rock, leaving behind a pattern of red, crosshatched ...

Blombos Cave drawing with ochre pencil on silcrete stone. Craig Foster The crisscrossed pattern, drawn on stone 73,000 years ago, wasn't used as shorthand for #artlovers, but the hashtag-like design ...

Artists use different techniques close techniquesA way of doing something. to make drawings more interesting to look at or more realistic close realistic When something is as close to real life as ...