A member of the now-extinct hominid species Homo erectus engraved a geometric design on a sea shell nearly half a million years ago, long before the earliest evidence of comparable etchings made by ...

Commuters along Speer Boulevard in downtown Denver will notice something different. Gerald Cross' 1975 untitled geometric sculpture consisting of orange-painted steel and blue plexiglass has returned ...

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

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