It was Thomas Alva Edison who ______ the electric lamp.（

invented the electric lamp.

Thomas Edison was a prolific inventor who is well-known for his work on the electric lamp. In 1878, he focused on creating a safe and cost-effective electric light to replace gaslight, a significant challenge at the time2。While there were early forms of electric light, such as the carbon arc light, these required manual ignition and had other limitations3。Edison's invention of the electric lamp revolutionized the way people lit their homes and workplaces, marking a significant milestone in the history of technology.23