Editing Duncan, Oklahoma (section)

===20th century===
Four fires in 1901 burned down several buildings.<ref name="survey" />

Centrally located in [[Stephens County, Oklahoma]], Duncan became the county seat after Oklahoma achieved statehood in 1907.<ref name="ohsduncan" /> As a compromise between residents of the northern and southern parts of the county, the county courthouse was located in the middle of Duncan's Main Street, half of it in the northern part of the city and county and half in the southern. Main Street made a wide circle around it on both ends.

Oil wells opened in Stephens County in 1918 led to rapid development in Duncan.<ref name="ohsduncan" /> Shacks were prohibited immediately following the opening of the wells and other regulations were also put in place to channel the growth in an organized manner.<ref name="ohsduncan" />

Several [[Tudor Revival architecture|Tudor Revival]]-style homes were built in the 1930s.<ref name="survey" /> [[Works Progress Administration]] projects meant to rebuild the economy after the [[Great Depression]] resulted in a public library, a senior high school, a stadium, a pool, a school and auditorium for the black community, an armory, and numerous bridges and sidewalks.<ref name="survey" />

Duncan expanded its city limits during an economic surge brought on by World War II.<ref name="survey" /> Towards the end of this period, the downtown area began to see a decline.<ref name="survey" />