Related by context. Frequent words. (Click for all words.) 67 ancient Mesopotamia 65 Sumerians 64 Sassanid 63 Fertile Crescent 62 #BC [003] 62 thirteenth century 61 antiquity 61 Persian empire 60 ancient civilization 60 Babylonia 60 Safavid 60 ancient civilizations 59 Bronze Age 59 millennium BC 59 Neolithic 59 Parthian 59 fourteenth century 59 classical antiquity 59 Hellenistic 58 Etruscans 58 prehistory 58 Sumerian 58 Jiroft 58 ancient 57 ancient Persia 57 Persian Empire 57 neolithic 57 fifteenth century 57 Paleolithic 57 Iron Age 56 Assyria 56 Zoroastrianism 56 Mesopotamia 56 civilizations 56 civilization 56 Mesopotamian 55 Neandertal 55 Middle Ages 55 Achaemenid 55 archaeological finds 55 Ming Dynasty #-# 54 ancient Babylon 54 archaeological discoveries 54 archeological excavations 54 #AD [002] 54 Minoan 54 millennia 54 Ptolemaic 54 #BC [002] 54 Han Dynasty 53 Ancient Egyptians 53 Shahnameh 53 Qin Dynasty 53 cuneiform 53 Roman Empire 53 Cretaceous Period 52 Byzantine era 52 prehistoric 52 Pharaonic 52 Ottomans 52 Byzantine Empire 52 Canaanite 52 ancient manuscripts 52 Rig Veda 52 mediaeval 51 historiography 51 supercontinent 51 Ottoman 51 Baha'u'llah 51 Ottoman empire 51 Assyrians 51 ancient Persian 51 sixteenth century 51 Gandhara 51 Goguryeo 51 ancients 51 #th century 51 Neandertals 51 pharaonic 51 Hasankeyf 51 Ottoman Empire 51 ancient Egyptians 51 royal tombs 51 Shi'ism 51 parchments 50 Koguryo 50 polytheistic 50 burial mounds 50 Byzantines 50 illuminated manuscripts 50 AD# [001] 50 Norman Conquest 50 ancient Israelites 50 Ottoman Turkish 50 Ancient Greeks 50 Canaanites 50 archaeological excavations 50 artefacts 50 Babylonians 50 Hijaz 50 ethnology