The elevator safety brake is really important since the steel allows us to build taller structures. If there had not been an elevator safety brake, there would have been many more accidents nd mishaps when using elevators.
Meat-Packaging Empire (midwest)- Gustavis Swift
The meat-packaging empire in the midwest was very important because it gets everything that should not be eaten, such as feathers, dry-blood, and some fat.
Typewriter with QWERTY Keyboard- Christopher Sholes
The typewriter with the QWERTY keyboard was and is very important because it made typing universal. Any keyboard will be a QWERTY keyboard set up.
Telephone- Alexander Graham Bell
The telephone was and is a very important invention because it made it easier to talk to other people that were far away. It is the most popular form of communication and it is extremely faster than writing letters.
Refrigerator Car Company- Joel Tiffany
The refrigerator car company was very important because it made us be able to transport meat and other refrigerated products accross the country.
Incandescent Lightbulb- Thomas Edison
The incandescent lightbulb was and is an important invention because instead of burning a candle or kerosene, which can go out when the wind blows, the incandescent lightbulb would stay lit. It was also much safer than having candles with young children.
Expansion of the Steel Industry- Andrew Carnegie
The expansion of the steel industry into the west was very important because it merged the east and the west. The east was more industrial than the west. While the west was more agricultural than the east.
Roll Film- George Eastman
Roll film was and is a very important invention because it is how a lot of movies are shown.
Social Darwinism 1910-1930
A belief in which the strongest/fittest should survive and flourish in society while the weak/unfit are allowed to die.
Linotype Machine- Ottmar Mergenthaler
The linotype machine was an important invention because it was the first printing machine and could print one "line-of-type". This made it easier to manufacture newspapers.