The surrounding seas, mountains, islands, and climate divided Greece into communities
The Social Democratic Workers' Party of Germany was founded in 1869 under the influence of Marx and Engels. In 1875, it merged with the General German Workers' Association of Ferdinand Lassalle to become what is known today as the German Social Democratic Party (SPD).
https://en.wikipedia.org/wiki/History_of_socialism
Europe embarks on an age of exploration (1400)
Britain and Spain establish colonies in north and south America (1700)
the industrial revolution leads to the rapid increase of industries in Europe (18th -19th century)
european nations begin establishing colonies in africa (19th century)
hope this helps! :)