World population migrations in the geopolitical coordinates

The article analyses three migration eras in human history, proposes delimitation of these eras. The first era of global migrations covers the time from the emergence of man on our planet until the middle of the second Millennium A.D. The second era in the global development of migration processes began in the Age of Discovery. This era was over with the end of the World War I. The third migration era was marked by the events unprecedented in the scale and incomparable to other eras by the amount of population living on all inhabited continents. These events changed the architectonics of the world, state systems, balance of power between countries. Within a century there were radical transformations in all spheres of human activity including migration processes. Each era is illustrated by specific main migration processes. The conclusion shows possible geopolitical consequences of the current migrations in the world.