2. The light bulb (1879): The light bulb, invented by Thomas Edison, brought light to the darkness and made it possible for people to work and socialize after the sun went down. It also led to the development of other electrical appliances, such as the toaster and the vacuum cleaner.
3. The automobile (1885): The automobile, invented by Karl Benz, made it possible for people to travel long distances more quickly and easily than ever before. It also led to the development of the internal combustion engine, which is still used in cars today.