Civilization, Medieval 1 Computer games 1 Diffusion of innovations 1 Economic development 1 Hilbert space 1 Information society 1 Information technology 1 Inner product spaces 1 Medievalism 1 Medievalism in art 1 Medievalism in literature 1 Middle Ages in motion pictures 1 Political aspects 1 Social aspects 1 Technological innovations 1 Wavelets (Mathematics) 1