Who created Americans suburbs?

American suburbs were largely shaped by post-World War II policies and economic conditions, with significant contributions from figures like William Levitt, who is often credited with popularizing suburban development through the creation of Levittown in New York. The GI Bill and federal mortgage programs also played crucial roles in making homeownership more accessible to returning veterans, facilitating the growth of suburban communities. Additionally, urban planning policies and the rise of the automobile culture supported the expansion of suburban areas across the United States.