<u>i KNEW IT BUT I FORGOT</u>
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I believe the answer is Gold.
Gold was a very hot commodity at that time because before we use paper/digital money like today, Gold was made as material to make a type of money with more intrinsic value.
The abundance of this natural resources led to many European empire came and started their colonization in AFrica.
Answer:
After seeing what happened with the Americans and their success they realized they should be able to stand up for themselves too. It inspired them to rebel against the royals because they were over taxing them as well just the Britain's did to the Colonists.
Explanation:
Hope this helps (:
The assassination of Archeduke Franz Ferdinand of Austria and misunderstanding in diplomatic communications.