Piecing together archival maps and photographs, with guidance from historians, The New York Times constructed a 3D model of the Greenwood neighborhood of Tulsa, Oklahoma—known as America’s Black Wall Street—as it was before the destruction that took place in 24 hours in 1921. The paper also analyzed census data, city directories, newspaper articles, and survivor tapes and testimonies from that time to show the types of people who made up the neighborhood and contributed to its vibrancy.