Fragments of decorated ostrich eggshells. (Texier et al., J. Archaeol. Sci., 2013) Ancient humans were surprisingly creative, ...

Archaeologist Silvia Ferrara described the organization of lines by recurring principles—parallelisms, grids, rotations, and systematic repetitions—as an embryonic visual grammar.

A reanalysis of markings on Babylonian tablets has revealed that astronomers working between the fourth and first centuries bc used geometry to calculate the motions of Jupiter — a conceptual leap ...