Long as all hell, quite easy early on but started getting a lot harder after some time.
I missed Teddy Roosevelt, Jackie Robinson, Rosa Parks, Sigmund Freud (probably my most shameful error), Andy Warhol, Mao Zedong, Walt Whitman, James Madison, Ray Charles, Haile Selassie, Billie Holiday, W. E. B. Dubois, Woodrow Wilson and Lou Gehrig.
87% - meh, could be worse