Jackie Robinson is a very well known baseball player all around the world. He was the first African American to make it big in the major leagues, and he broke the color barrier for African Americans in baseball altogether. In doing so, he challenged racial segregation across the North and the South and became a huge icon.
Rosa Parks is also a huge icon throughout the world. Because of her refusal to give up her seat to a white passenger on a bus in Montgomery Alabama, she started a city-wide boycott. This boycott led to the ending of segregation, and a new chapter for African Americans. She received the highest NAACP award.
I chose these two people because I find the African American movements very interesting. I think it's amazing how much they were able to stand up for what they believe in, and not just give up when times got tough. They were not afraid of the consequences, because they believed they could achieve their right to be free.