Romans were justifying their slaveholding practices using Aristotle’s climate theory, and soon the new Christianity began to contribute to these arguments.

My definition of a racist idea is a simple one: it is any concept that regards one racial group as inferior or superior to another racial group in any way.

Racially discriminatory policies have usually sprung from economic, political, and cultural self-interests, self-interests that are constantly changing.

The principal function of racist ideas in American history has been the suppression of resistance to racial discrimination and its resulting racial disparities. The beneficiaries of slavery, segregation, and mass incarceration have produced racist ideas of Black people being best suited for or deserving of the confines of slavery, segregation, or

W. E. B. Du Bois (1868–1963), our fourth tour guide, initially adopted Garrison’s racist idea. But he also stood at the forefront of antiracist ideas, challenging Jim Crow’s rise in the late nineteenth century.

Time and again, powerful and brilliant men and women have produced racist ideas in order to justify the racist policies of their era, in order to redirect the blame for their era’s racial disparities away from those policies and onto Black people.

Angela Davis (1943–present) spent the next four decades opposing the racial discriminators who learned to hide their intent, denouncing those who promoted end-of-racism fairytales while advocating bipartisan tough-on-crime policies and a prison-industrial complex that engineered the mass incarceration, beatings, and killings of Black people by law

These five main characters—Cotton Mather, Thomas Jefferson, William Lloyd Garrison, W. E. B. Du Bois, and Angela Davis—were arguably the most consistently prominent or provocative racial theorists of their respective lifetimes, writing and speaking and teaching racial (and nonracial) ideas that were as fascinating as they were original,

Racial discriminationracist ideasignorance/hate: this is the causal relationship driving America’s history of race relations.