Related by context. Frequent words. (Click for all words.) 56 Pythagoras 53 thirteenth century 52 Archimedes 51 #BC [002] 51 ancients 50 Herodotus 48 Justinian 48 Minoan 48 Alexandrian 48 Hellenistic 48 radiocarbon dating 48 Aristotle 48 Plutarch 48 Sumerians 48 sundials 47 ancient 47 ancient Greeks 47 Egyptian pyramids 47 antiquity 47 Ancient Greeks 46 Babylonians 46 astronomical observations 46 fifteenth century 46 Etruscans 46 hieroglyphs 46 occultation 46 Ptolemy 46 ancient Greek 46 Ancient Greek 45 Great Pyramid 45 Thucydides 45 millenniums 45 ellipse 45 #BC [003] 45 #AD [001] 45 Lao Tzu 45 Babylonia 45 polynomial 45 astronomical observatory 45 Hippocrates 44 Aristotelian 44 Phoenicians 44 Galileo Galilei 44 palimpsest 44 Fourier 44 Dante Alighieri 44 Galilean 44 Rig Veda 44 prehistory 44 philology 44 mathematicians 44 ancient Egyptians 43 Archaic 43 cuneiform 43 Dionysius 43 Ionian 43 Persian Empire 43 stele 43 AD# [001] 43 biblical scholars 43 ancient Roman 42 annular eclipse 42 Sumerian 42 ancient Romans 42 Thomas Aquinas 42 interferometer 42 ecliptic 42 Mathematician 42 Antiquity 42 camera obscura 42 Johannes Kepler 42 astronomers 42 Bronze Age 42 equinoxes 42 Halley Comet 42 spring equinox 42 equinox 42 ancient Babylon 42 Ancient Egyptians 42 geomorphology 42 Salamis 42 Ancient Rome 42 bluestones 42 ancient civilization 42 archeologists 42 microlensing 42 archaeologists 41 Dead Sea Scrolls 41 ancient manuscripts 41 #BC [001] 41 Khufu 41 magi 41 ca. 41 vernal equinox 41 fourteenth century 41 #thcentury 41 particle physicists 41 millennia 41 Aeneid 41 mathematician 41 Byzantine era