Greta Thunberg, Edward Snowden, and the people of Hong Kong are all potential contenders for this year's Nobel Peace Prize.
Megan Revell runs through some of the other nominees and explains how they are chosen.
A Timeline of the Life of Dr. Martin Luther King Jr.
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A Timeline of the Life of , Dr. Martin Luther King Jr.
January 15, 1929 , Martin Luther King Jr. is
born in Atlanta,..
