It's a blend of truth and creative interpretation. While it's grounded in real events, the filmmakers may have taken some artistic liberties to make it more engaging for the audience.
Well, 'Messiah' isn't based on real events. It's the product of the creators' imagination and storytelling skills. The plot and characters are fabricated to engage and captivate the audience.
One main event could be large - scale protests against racial segregation. The 'Black Messiah' figure might have been at the forefront of these protests, leading people in peaceful marches. Another event could be the fight for equal voting rights. This would involve campaigns to register black voters and overcome the barriers put in place to prevent them from voting.