Who can be a citizen? Many countries recognize birthright citizenship, meaning that anyone born within a country's territory is automatically a citizen, even if the parents are not citizens. See full-sized image for analysis.
At the Congress of Berlin in 1884, 15 European powers divided Africa among them. By 1914, these imperial powers had fully colonized the continent, exploiting its people and resources. See full-sized image for analysis.
La Primera Guerra Mundial precipitó el derrumbe de muchos imperios, mientras que otros mantuvieron su poder global. Compare este mapa de la década de los veinte con el mapa de los imperios en 1914. Vea la imagen en tamaño completo para el análisis.
Historians estimate that about 1,100 Jewish ghettos were established by the Nazis and their allies in Europe between 1933 and 1945. This map shows the locations of the largest ghettos. View the Spanish version of this map.