World War I involved 32 nations from 1914 to 1919. It redrew the world map and reshaped many borders in Europe. The collapse of the Russian Empire created Poland, the Baltics, and Finland.

but much of present-day Europe is based on the lines drawn following the conflict sparked by Princip's bullet. (Pull cursor to the right from 1914 to see 1914 map and to the left from 2014 to see ...

A recent genetic study of ancient populations has revealed details about the origin and expansion of Celtic languages in Europe, an enigma that has intrigued historians and linguists for decades. The ...

The lands of present day Ukraine are stretched across the distinct periphery of the ‘Celtic world’. From the midfirst millennium BC the cultural background of this part of Eastern Europe was defined ...