Before it was established, two-four year terms were common because president Washington popularized it by his choice to do so. This was however never a written law, when the 22nd Amendment was created it was due to the fact President Roosevelt won four terms.
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The main objectives of the Progressive movement were addressing problems caused by industrialization, urbanization, immigration, and political corruption. Social reformers were primarily middle-class citizens who targeted political machines and their bosses.
The civil war was caused by more than disagreement there was slavery going on and racism and so-on
Maine admitted as free state and Missouri a slave state, preserved sectional balance of senate, Louisiana territory split b/w slaveholders and free settlers, south=slavery was legal, north= slavery banned (except Missouri), slavery in federal territories settled, slavery legal south of dividing line, Maine and Missouri= free states, settle slave issue temporarily