TULSA, Okla. (AP) — There's been undeniable progress in the relationship between the Tulsa police and the city's Black community in the past 100 years. Then again, it's hard to imagine it could have gotten worse.

Complaints about police bias and a lack of enough minority officers remain. But the police chief is now a Black man from north Tulsa, the area that includes what once was America's wealthiest Black business district.

Back in 1921 — decades before the Civil Rights Movement — even the thought of a Black police chief would have been inconceivable. That year, Greenwood — the Black north T...