Look at the map of Europe in 1900 and compare it to the map of Europe in 1914.

Europe in 1900
Map of Europe in 1900; the legend indicates that the map is broken up into nations based upon predominant religions; each country is labeled in its own language. Source: Europe in 1900, Matthew White's Homepage
Europe in 1914
Map of Europe in 1914; the legend indicates that the map is broken up into nations based on types of governments (monarchies or republics) and colonies; each country is labeled in its own language. Source: Europe in 1914, Matthew White's Homepage


Interactive exercise. Assistance may be required.