Light bulb
Even if to contend for the authorship of the light bulb I'm the American Thomas Edison and the Italian Alessandro Cruto, it is certain that this small object, invented during the 19th century, revolutionized the daily life of people all over the world.
After the discovery of electricity , the light bulb arrived slowly in every home, ending up marking the day of each individual with unprecedented and modern rhythms.
Another positive aspect due to the advent of the light bulb was the progressive but definitive retirement of the lights oil , which in addition to not being as functional, often ended up causing dangerous fires inside homes.