Empires throughout time and continents. World GeoHistoGram™. WEST, Americas, Europe, Africa, Middle, C&S Asia, E Asia, Oceania, EAST. Time scale from 7000 BCE to 2000 CE. Examples of empires and states include US, USSR, Germany, European Imperialism, Ottoman, Ming, Mongol, Rome, Persia, Han, Inca, Aztec, Maya, Greece, Ethiopia, Sumer, Indus Valley,