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Treaty of Versailles Signed
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the first transcontinental motor convoy crosses the country using the incomplete Lincoln Highway
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the 19th Amendment allows women to vote
This amendment provide men and women equal voting rights. Women’s voting rights had been a controversial idea for over 40 years. Over 8 million women voted when they finally got the opportunity to vote. This is historically significantly because women never had equal rights with men so when the 19th Amendment was passed, it gave women the same voting rights as men. Women were fighting for their rights for many years, so this was a huge deal for them. -
Insulin is invented
Frederick Banting injected a hormone into a dog and found that it lowered high blood glucose levels to normal. He then grinded up and filtering a dog’s surgically tied pancreas, and isolating a substance called “isletin.” He then developed insulin for human use. This is important because insulin was used in 1922 to save a boy’s life. If it weren’t for the discovery of insulin, many people wouldn’t be living today and people with diabetes wouldn’t be able to help treat it. Many diseases have been -
Einstein invents a safe refrigerator
Einstein wanted to create a refrigerator that wasn’t filled with toxic gases. He created a refrigerator that ran on heat and had no moving parts. The refrigerator ran on an electromagnetic pump and it served as a piston and compress a refrigerant. This is important because the invention of this refrigerator would be the first model of a better refrigerator. People would use Einstein’s ideas to continue to improve the design and make the refrigerator what it is today. This is the first refrigerat -
Philo T Farnsworth invents the TV
Philo T Farnsworth created a television set that was able to transmit an electrical image without the use of mechanical contrivances. His television scanned images with a beam of electrons. This is historically significant because his invention is the direct ancestor of modern television. His television would be the first of many televisions that would be in many people’s homes by 1947. -
Walt Disney introduces Mickey Mouse in Steamboat Willie
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The Great Depression
The stock market crashed in 1929 and wiped out millions of investors. Consumer spending and investments dropped over the next several years, causing steep declines in industrial output and many people without jobs. Many businesses and banks were forced to close and food and other products were limited. This event is historically significant because it lasted many years and impacted a huge number of people. The United States was affected and so were many other countries, such as Europe. This even -
the electron microscope is invented
Max Knoll and Ernst Ruska invented the first electron microscope. They were able to create a microscope that improved how atoms could be seen. This microscope had a clearer image of the atom and had improved resolution. Increasing the resolution was the main driving force and Knoll and Ruska accomplished this. This is historically significant because the invention of this microscope allowed scientists to see aoms four hundred times better than before. This microscope allowed scientists to make n -
Hitler appointed chancellor of Germany
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Snow White and the 7 Dwarfs is the first full length animated film
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German Invasion of Poland
