Reconstruction occurred after the Civil War, lasting from 1865 to 1877.
So the answer is A. Reconstruction.
It helped spread the ideas of the Enlightenment across Europe and beyond. ... The ideas of the Enlightenment played a major role in inspiring the French Revolution, which began in 1789. After the Revolution, the Enlightenment was followed by the intellectual movement known as Romanticism.
Production of more food--the system allowed for more food to be produced which fed the workers in an industrial economy.
The 'four-field system' rotates crops between the 4 fields no longer needing to keep one empty because one of the crops would replenish the field with nutrients while the others take nutrients away from the fields. <span />
<span>Dmitri Ivanovich Mendeleev</span>
He was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements,
and used it to correct the properties of some already discovered
elements and also to predict the properties of eight elements yet to be
discovered.
The Treaty of 1818 between the US and Britain stated the Oregon Country would be jointly occupied by the US and Britain. But it resulted in disputes between Americans and British and another treaty, the Oregon Treaty, was signed in 1846. It stated the Oregon Country would be divided in two. The US would get all the land south of the 49th parallel (which eventually became the states of Washington and Oregon) and the British would get all the land north of the 49 parallel (which became British Columbia). Except for Vancouver Island off the coast of the Oregon Country, 4/5's of Vancouver Island was north of the 49th parallel so the US said Britain could have all of it instead of splitting it at the 49th parallel.
