The Greenwood District was the creation of deliberate Black entrepreneurship under conditions designed to prevent it. Its founding came from a single purchase: in 1906, O.W. Gurley — a teacher turned businessman who had come to Oklahoma from Arkansas — bought land on a street he named Greenwood Avenue and sold lots exclusively to Black buyers. The legal segregation that barred Black Tulsans from white commercial districts had an unintended consequence: it concentrated Black consumer spending inside Greenwood. Every dollar spent in Greenwood circulated among Black businesses before it left the community. Estimates held that a single dollar changed hands as many as 36 to 100 times within the district before flowing out.
By 1921, Greenwood contained an estimated 600 Black-owned businesses within 35 city blocks — a concentration of Black enterprise unmatched anywhere in the United States at the time. Among those businesses and institutions:
- J.B. Stradford's Stradford Hotel — 54-room luxury hotel, one of the largest Black-owned hotels in America, built by attorney and businessman John Baptiste Stradford who believed Black economic solidarity was the path to freedom
- O.W. Gurley's holdings — rental properties, a grocery store, and other commercial interests along Greenwood Avenue; Gurley had become one of the wealthiest Black men in Oklahoma
- Simon Berry's bus line and car service — Berry ran a jitney service that predated city transit and later became a full bus operation; he also operated a charter airline service, making him one of the only Black airline operators in the country
- Dr. A.C. Jackson — described by the Mayo Clinic as "the most able Negro surgeon in America," Jackson practiced in Greenwood; he was shot and killed during the massacre while surrendering, hands raised, to the mob
- Two newspapers — the Tulsa Star (published by A.J. Smitherman) and the Oklahoma Sun; both destroyed in the massacre
- A law district — Greenwood Avenue's upper floors housed the offices of at least a dozen Black attorneys, including B.C. Franklin, whose legal challenge would later block the city's attempt to rezone Greenwood after the massacre
- Booker T. Washington High School, a hospital, a library, a post office, 21 churches, 21 restaurants, 30+ grocery stores, a pool hall, movie theaters, barbershops, and tailors
The community had its own professional class — doctors, lawyers, dentists, teachers — and its own social infrastructure of churches, fraternal organizations, and newspapers. Booker T. Washington, visiting around 1905 before the district reached its peak, coined the phrase "Black Wall Street." It was not hyperbole. It was an accurate description of what Black Americans had built in fifteen years, with no access to white capital markets, no government support, and in the face of the legal apartheid of Jim Crow Oklahoma.
The prosperity of Greenwood was both an achievement and a provocation. It disproved the foundational lie of segregation — that Black Americans could not organize, build, or sustain complex economic institutions. That disproof was not tolerated.