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Elisha Otis in the early 1850's invented the first elevator with a brake that could lift and lower cargo and people safely. The safety device prevented falling in the event a supporting cable breaks. It was Otis' invention of the elevator brake that would eventually make living in skyscrapers possible.
What else can I help you with?
What political party was formed in1854 to oppose slavery and protect the interest of the north?
The Republicans.
Which city became the capital of CA in1854?
Sacramento became the capital city of California on February 25, 1854.
Why was Kansas called Bleeding Kansas in 1855?
Prior to the Civil War, several bloody clashes occurred between pro-slave and pro-free citizens while they were deciding their own status: whether to allow slavery or not, when they became a state.
How did john snow prevent the spread of cholera?
he stopped it by tracking down loads of people in1854 and found they all drank from a well john snow soon tracked down the well and with the evidence he had he shut the well down and cholera had gone he had saved the day
