Europeans couldn't travel into the interior of Africa in order to take it over because of the African-ruled trade, couldn't navigate violent rivers, or overpower their strong armies. Disease also held them back.
Yes.
middle-class colonists were the most affected by the British rule and taxes.
When you are the one that works the hardest but the one that pays the highest tax you are easily persuaded to pick up a weapon and fight for your rights.
The Boston Tea "Party" was a good example of people being sick of paying high taxes for something that was forced on them.
;)
