Greenwood is a historic freedom colony in Tulsa, Oklahoma. As one of the most prominent concentrations of African-American businesses in the United States during the early 20th century, it was popularly known as America's "Black Wall Street". It was burned to the ground in the Tulsa race massacre of 1921, in which a local white mob gathered and attacked the area. Between 75 and 300 Americans were killed, hundreds more were injured, and the homes of 5000 were destroyed, leaving them homeless. The massacre was one of the largest in the history of U.S. race relations, destroying the once-thriving Greenwood community.

Tulsa is the second-most-populous city in the state of Oklahoma, after Oklahoma City, and is the 47th-most-populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa metropolitan area, a region with 1,034,123 residents. The city serves as the county seat of Tulsa County, the most densely populated county in Oklahoma, with urban development extending into Osage, Rogers and Wagoner counties.