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Era of Censorship in the United States
Censorship in the United States, which involves the suppression of speech or other public communication, which is protected by the first amendment in the United States Constitution. -
Smith Act (The Alien Registration Act of 1940)
A constitution act made by Congress that set criminal penalties for advocating the overthrow of the U.S. government and required all non-citizen adult residents to register with the government. -
The Battle of Britain
After the fall of France at the end of June 1940, Nazi Germany had one major enemy left in Western Europe -- Great Britain. Overconfident and with little planning, Germany expected to conquer Great Britain by first gaining domination over airspace and then later sending in ground troops across the English Channel. It was clear at the end of the battle, that Briatin had won. -
Japanese Attack Pearl Harbor
On the moring of December 7th, 1941, Japanese pilots attacked pearl Harbor in Oahu, Hawaii., killing thousands and wounding many.In reaction to the attack, the United States entered in WW1. -
"Big Bang" Theory Formulated
Ralph Asher Alpher develops the Big Bang Theory, a theory that says that the universe was created after a large "nucleus" exploded and created new elements from simple elements, eventuallt creating the world. -
The First Modern Credit Card Introduced
n 1949, Frank X. McNamara thought of an idea for customers to have just one credit card--one that they could use at multiple stores. McNamara discussed the idea with two friends and the three pooled money and started a new company in 1950 which they called the Diners Club. In 1950 they created the first credit card. -
Polio Vaccine Created
Jonas Salk invents the polio vaccine , the disease that affects the central nervous system, often causing muscle wasting and paralysis and even death.This prevented polio epidemics from continuing and saving lives around the world. -
The Discovery of DNA
DNA was first identified and isolated by Friedrich Miescher . The double helix structure of DNA was first discovered by James Watson and Francis Crick in 1953. -
Rosa Parks Refuses to Give Up Her Bus Seat
Rosa Parks, a 42-year-old African-American seamstress, refused to give up her seat to a white man while riding on a city bus in Montgomery, Alabama.Parks was arrested and fined for breaking the laws of segregation. Rosa Parks' refusal to leave her seat sparked the Montgomery Bus Boycott and is considered the beginning of the Civil Rights Movement. -
Interstate Highway Act
Under President Eisenhower, the US passed the highway act which called for the building of 41,000 miles of interstate highway. Interstate highways facilitated trade and travel. It allowed people to move out of the big cities and into the suburbs. Construction ended in the early nineties, improving transportation in the US tenfold. -
Dr. Seuss Publishes The Cat in the Hat
The all-time famous childrens book was published by Theodor Geisel with the pen name Dr. Suess, forever changing the word childrens books. Dr. Suess's books in the future would be used as an well-liked way to teach children to read. -
John F. Kennedy was sworn in as President of the United States.
John F. Kennedy was sworn in as President of the United States.
At age 43, John F. Kennedy was the youngest American ever elected to the presidential office.
