b) Titusville, Pennsylvania

America’s first commercial oil well was drilled in 1859 in Titusville, Pennsylvania, igniting the modern petroleum industry. Drilled by Edwin L. Drake, the success of this well marked the beginning of the oil boom in the United States. The discovery of oil in Titusville led to rapid industrial and economic growth, with profound effects on global energy and industrial sectors. This event signaled the transition from whale oil and other fuels to petroleum, reshaping energy consumption patterns and spurring technological and industrial innovations.