The 20th Century began on January 1, 1901 and ended on December 31, 2000. It was the tenth and final century of the 2nd millenium.
Inventions such as the light bulb, the automobile, and the telephone in the late 19th century, were followed by supertankers, airliners, motorways, radio, television, antibiotics, frozen food, computers and microcomputers, the Internet, and mobile telephones. These and many other 20th century inventions affected people's quality of life across the developed world. Scientific research, engineering professionalization and technological development drove changes in everyday life.