Cotton gin and interchangeable parts
Cotton Gin- takes out the seeds in plants
Parts- Replaces bad parts
They only made 2 inventions
elevators and skyscrapers
There where many inventions in the 1920s as it was a time of change but 2 big ones are the car and insulin. I also think that crayobs were invented in the 1920s.
The 2 inventions that made modern city life possible are piped water and electricity at homes. These inventions have improved living conditions in modern cities.
Inventions in 1959
JUSTIN BIEBER IS AWESOME and he was invened then
They only made 2 inventions
It is: 2
151 × 1 2 = 1812 inches.Note: there are 12 inches in 1 foot.
George Carvers mostimportant 2 inventions are the peanut proudoct and peanut butter
The War of 1812 lasted for about 2 years and 8 months, from June 18, 1812, to February 18, 1815.
um peanut butter and bridges i dont know i got it of a random website
The two inventions that have revolutionized communication are the telephone and the internet.
2 September 1812
1 2 3 4 6 12 151 302 453 604 906 1812.
wind mills
elevators and skyscrapers