It redrew the world map and reshaped many borders ... and Germany lost substantial territory outside Europe. For more information about the history of World War I, visit The National WWI Museum ...

Instead, arm yourself with the stats seen in these cool maps of Europe ... However, more countries in Europe trade with Germany, which happens to be the world's third-largest trader with 65.6 ...

Alberto Cantino, an Italian spy, acquired a Portuguese map showing stunning finds in the New World. This story appears in the March/April 2017 issue of National Geographic History magazine.

Because the world is a sphere, it is difficult to accurately project this on a two-dimensional map. When the world is ... seven continents and five oceans. Europe is a continent.