Related by context. Frequent words. (Click for all words.) 57 hieroglyphs 52 parchments 51 codices 51 Denisovans 50 genealogies 49 Mesoamerican 49 Olmec 49 cuneiform 49 pictographs 49 Etruscans 49 Neandertals 48 bluestones 48 Incan 48 hieroglyphic 48 hieroglyphics 47 Sumerians 47 musical notation 47 haplotypes 47 hominins 46 whorls 46 ossuaries 46 binary code 46 pre Columbian 46 microfossils 46 Mesoamerica 45 archeologists 45 Chaco Canyon 45 Rosetta stone 45 polynomial 45 topographical map 45 hadrosaur 45 ancestries 44 Neandertal 44 cairns 44 burial mounds 44 ancient manuscripts 44 lineages 44 Petrarch 44 Inca 44 phonemes 44 artifacts 43 Ardipithecus 43 glyphs 43 Arabic numerals 43 mitochondrial genome 43 Sumerian 43 archaeologists 43 theropods 43 epochs 43 Neanderthal DNA 43 Tiktaalik 43 ancestors 43 theropod 43 Moche 43 ancient Mesopotamia 43 artifact 43 Inca empire 42 prehistory 42 stone carvings 42 genealogical 42 Mixtec 42 phylogeny 42 palimpsest 42 orthography 42 melanosomes 42 ancestor 42 longitudes 42 algebraic 42 Egyptian pyramids 42 artefact 42 fifteenth century 42 hierarchically 42 lexical 42 taxonomists 42 ancient 42 middens 42 anthropologists 42 Incas 41 landforms 41 theorems 41 ancients 41 arrowheads 41 FOXP2 41 taxonomic 41 neolithic 41 Tenochtitlan 41 funerary 41 Poinar 41 archaeological finds 41 ancient Mayans 41 radiocarbon dating 41 continuities 41 genus Homo 41 archaeological discoveries 41 magnetic compass 41 mestizos 41 topological 41 mummies 41 heraldry 41 illuminated manuscripts 40 striations