Listen to Dr. Martin Luther King Jr's speech here:
https://www.npr.org/2010/01/18/122701268/i-have-a-dream-speech-in-its-entirety
Watch videos and read about Dr. Martin Luther King Jr. here:
https://www.brainpop.com/socialstudies/famoushistoricalfigures/martinlutherkingjr/
https://www.brainpop.com/socialstudies/ushistory/civilrights/
https://www.history.com/topics/black-history/martin-luther-king-jr-video
https://www.biography.com/video/martin-luther-king-mini-biography-2079122252
https://www.nytimes.com/interactive/2018/04/03/us/mlk-assassination-anniversary.html