Thomas Edison is primarily credited with the invention of the electric light bulb. Although he did not actually invent the first light bulb, he significantly improved upon earlier designs, creating a practical and long-lasting version in 1879. Edison’s approach included developing a better filament and a vacuum inside the bulb, which improved efficiency and lifespan. He also established an electrical system for generating and distributing electricity, further propelling the use of electric lighting in homes and businesses. Edison's contributions laid the groundwork for modern electric lighting and earned him the title of one of history's most influential inventors.