Archaeology 32 History 25 Cultural property 17 Methodology 14 Civilization 13 Antiquities 12 Philosophy 11 Protection 10 Social aspects 10 Civilization, Medieval 8 Civilization, Modern 7 Conservation and restoration 7 Historic preservation 7 Collection and preservation 6 Historic sites 6 Popular culture 6 Archaeologists 5 Edad Media 5 Forecasting 5 Historiography 5 Middle Ages 5 Political aspects 5 Publicación periódica 5 Arqueología 4 Biography as a literary form 4 Civilización 4 Cultural policy 4 Ethnoarchaeology 4 Intellectual life 4 Research 4