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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Martin Luther King Jr. believed in peaceful protests. He led many non-violent organizations and protests, such as the March on Washington and the Montgomery Bus Boycott. He wanted everyone to be equal. Malcolm X, the head of the Nation of Islam, on the other hand believed that blacks were a superior being and that they didn't have to listen to what the white man said. He believed that they should show their superiority by any means possible even if that meant violence had to be used.
The answer to this would be non-instental question