Well, the airplane is used in wars, which is pretty important...
Also, flying on an airplane was a fast way to get somewhere far away.
The 20th century
Both the phonograph and electric lightbulb were invented in the late 19th century.
The travelling time.
The Steamboat
The Steamboat
The locomotive
Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
The Steamboat
The Steamboat
The Steamboat
JANET RENO