I was aware that Martin Luther King had said that Hegel was his favorite philosopher, and I knew he studied Hegel as a student in university, but this MLK Day I learned something new about MLK - that he had a Dialectical Society, which I read in Martin Hägglund's This Life (below):
Page from Martin Hägglund's This Life (2019)
MLK's outline of Hegel's philosophical system on a notecard