Martin Luther King Jr was a leader of a civil rights movements that wanted equality and freedom be granted to all races equally.
He is best known for holding PEACEFUL protests
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It offered easy access to varied resources and had a mild climate which facilitated all-year gatherings. The sea and beach furnished marine life and shellfish which were the most important food sources, and from the river fresh water and food were obtained.
The trans-continental railroad was completed around this time, so not only did train travel change, but was innovated so that a train could take you anywhere across the US.