Before the europeans you had the turkish (ottomans), Omanis, Persians and long before them the Romans colonizing various regions, so colonialism always existed but it was the european colonization which shaped the countries today.
As for the question I think:
-Somalis would have had their camels grazing in Zimbabwe today
-USA, Canada, Australia, Mexico and all latina American countries wouldn't exist today
-There would be more clan based states i.e. hausa, fulani, tutsi etc
-We wouldn't have heard of Hollywood, Apple, McDonalds and all American corporations
-The natives of America would still be roaming around naked fighting in clan battles
-UN wouldn't exist more so just a European version
feel free to add more
http://worldhistorymaps.info/images/East-Hem_1400ad.jpg
http://go.grolier.com/map?id=mh00100&pid=go
http://www.unique-southamerica-travel-e ... merica.jpg









