The roman empire colonized Europe and introduced there the "will of power" and christianity , in a very complex mix.

1500 years later , Europe colonized the world


The first chapter of european colonizations is often called "Crusades" and as long as it seems out to be a non-ending history is better always having a neutral book explaining the thing






Runciman wrote this classic in the 1950s , and has been read and republished ever since (Cambridge University Press)