How did martin luther king jr significantly contribute to african americans rights

Martin Luther King was an American Baptist minister, political leader, and one of the most prominent members of the African-American civil rights movement.  

King became famous in the 1950s and 1960s thanks to his non-violent opposition to racial segregation in the United States, including the march to Washington on August 28, 1963, and boycotting city buses that favored whites. His verbal and rhetorical skills and charisma earned him a lot of fame, but King also had enemies. In 1963, he gave his legendary speech "I Have a Dream" on the stairs of the Lincoln Memorial, in which he expressed his hope that people would someday be judged by their behavior and not by their skin color. A year later, on December 10, 1964, he received the Nobel Peace Prize.

In 1968, Martin Luther King was shot at the age of 39 while standing on the balcony of the Lorraine Motel in Memphis. For many, Martin Luther King has remained a symbol of the civil rights movement in the United States.

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-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.