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May 2, 1440
Printing press
The printing press was invented in 1440 Johannes Gutenberg. -
Clock
The clock was a idea to use a swinging bob to regulate the motion of a time-telling. Christiaan Huygens was the inventor -
Cotton gin
The point of this machine is to separate the cotton from the seeds in the plant. It was invented by Eli Whitney -
Steam boat
John Fitch the builder had made four steam boats, but they were expensive and hard to built, so they were unsuccessful. The first successful one to be built was in Clermont by Robert Fulton -
Telegraph
Telegraph was invented between 1830s and 1840s. Created by Samauel Morse -
Plow
The plow was invented by John Deere in 1837 when middle west was being settled. Soil in the east was different and would end up breaking the wood on the plow. -
Safety Pin
Created by Walter Hunt. Invented to hold things together -
Dynamite
Used to blow things up. Invented by Alfred Bernhard -
Escalator
The use of this is to let people up and down levels of floors without having to walk down. Was created by Jesse W. Reno, and Charles Seeberger -
Calculator
Electronic calculator was created in 1960s. It also was invented William Seward Burroughs.
