Approximately 180 million years
All continents were united in one super continent known as Pangaea. according to Wegener, an observation into the shape and designs of the continents reveals that all the continents were once one large mass. the continent begun to split approximately 180,000 million years ago.
The Missouri compromise was nullified by the Kansas-Nebraska act. This act allowed the people in each state to determine whether or not slavery would continue within their state.
Abolitionist John Brown was executed because of his attempt to seize the arsenal at Harper's Ferry. John Brown led the Harper's Ferry raid.
Answer:
July 14, 1789 Storming of the Bastille
Answer: It effects countries after they've been decolonized as it's still taking resources away from them after leaving the control of the country up to them.
Explanation: (Hope this helps that's what I got from my History 12 course.)
