Related by context. Frequent words. (Click for all words.) 57 Inca Empire 55 Qing dynasties 54 Yuan Dynasty 52 Inca empire 52 Ming Dynasty #-# 52 Mughal Empire 51 stupas 51 Byzantine era 50 Byzantine Empire 50 Tang Dynasty #-# 50 pre Incan 49 Han Dynasty 48 Great Schism 48 Austro Hungarian Empire 48 Cretaceous Period 48 Byzantines 47 Roman Empire 47 Han dynasty 47 Meiji Restoration 47 Persian Empire 47 ancient Babylon 47 millennium BC 47 Ming dynasty 47 Jurassic Period 47 Persian empire 46 thirteenth century 46 Mycenaean 46 Shah dynasty 46 Qing Dynasty #-# 46 Joseon Dynasty 46 Austro Hungarian empire 46 Gautama Buddha 46 Pharaonic 45 Harappan 45 Dalai Lamas 45 #BC [003] 45 Tang dynasty 45 Ottoman Empire 45 Qing Dynasty 45 #BC [002] 45 Kublai Khan 45 Qin Dynasty 45 Abbasid 45 Harappa 44 Ottoman Turkish 44 Umayyad 44 royal tombs 44 murderous Khmer Rouge 44 caliphs 44 classical antiquity 44 Ottoman empire 44 Roman empire 44 Mughal era 44 Elamite 43 ancient Mesopotamia 43 centuries 43 hutongs 43 Ming Dynasty 43 fourteenth century 43 sixteenth century 43 dictator Siad Barre 43 fifteenth century 43 antiquity 43 emperors 43 Qing dynasty 43 Teutonic Knights 43 preindustrial 43 #AD [002] 43 #th century 43 Khmer Rouge reign 42 Norman Conquest 42 Spanish colonizers 42 Sassanid 42 Mayan civilization 42 Hittites 42 Palaeolithic 42 Thracians 42 dictator Mobutu Sese Seko 42 Tenochtitlan 42 Posted -# sec 42 Emperor Haile Selassie 41 Babylonia 41 Hellenistic 41 Kushan 41 ancient civilizations 41 Yugoslav federation 41 ancient Persia 41 Emperor Akbar 41 erstwhile princely 41 Khmer Rouge 41 Fertile Crescent 40 nineteenth centuries 40 Mughal emperor 40 Cambodia 40 Etruscans 40 Ancient Rome 40 Editors David Kravets 40 Joseon 40 Mohammad Zia ul 40 Dahomey 40 Song Dynasty