Vast amounts of resources ranging from gold to animal fur, which fueled Europe into the Industrial revolution.
Vast amounts of fertile land used to make plantations, which lead to better life for Europeans as they became landlords.
Vast amounts of american slaves that where used to help in the plantations and also in Europe.
Vast amounts of new items discovered and exported at high prices such as tobacco and spices
Vast amounts of cultural and traditional knowledge inherited to develop the Americas and also Europe
Vast amount of respect and power was gained to the colonizing nations which was one of the ways of acquiring power.
Vast amounts of economic prosperity and higher social status of the nations leading to higher civics.
Vast amounts of research and exploration done with the aid of slaves.
Vast amounts of transport vessels discovered and boats capacity increased to cope up with trade.
Vast amounts of high and low quality work was generated to Europeans, leading to decrease in unemployment.
Vast amounts of terrain and geographical features adquired, used to make quality building and houses for the Europeans.
They came on a agreement by voting, in some cases each state would get one vote and it would go from there.
Hoped this helped =)
The main reason why the United States was able to assert itself on the World Stage after WWII was because the US emerged from the war with an incredibly high GDP, thanks mostly to war-time spending. This allowed the US to act as a world leader because so much else of the world had been crippled economically.