Where was the light bulb invented and where is it used today?

The light bulb was invented in the United States, with Thomas Edison famously developing a practical version in Menlo Park, New Jersey, in 1879. Today, light bulbs are used globally in homes, offices, streets, and various public spaces, providing essential illumination and contributing to safety and productivity in everyday life. Innovations in lighting technology have expanded their applications, including energy-efficient LED bulbs and smart lighting systems.