Ice Age sign systems; modern-human interbreeding with Neanderthals; northern Peru geoglyph and farming complex; Greek inscription in Syrian mosque
Ice Age carvings show complex sign systems 40,000 years before writing
Study suggests interbreeding mostly involved Neanderthal males and human females
Chimú geoglyph and large farming complex documented in Chicama Valley
Greek inscription in Syrian mosque adds evidence to Roman sun temple debate