-
The Korean War begins
The Korean War begins -
Julius and Ethel Rosenberg y of wartime espionage and sentenced to death
Julius and Ethel Rosenberg were found guilty of conspiracy of wartime espionage and sentenced to death -
Hydrogen bomb
At Eniwetok Atoll in the Pacific Ocean, the first hydrogen bomb, named Mike, is exploded -
The first color televisions go on sale
The first color televisions go on sale -
Polio
The first large scale vaccination of children against polio begins in Pittsburgh, Pennsylvania. -
Brown vs. the Board of Education
Racial segregation in public schools is declared unconstitutional by the United States Supreme Court in Brown vs. the Board of Education -
Rosa Parks
Rosa Parks, an African American seamstress, refuses to give up her seat on the bus to a white man -
Federal-Aid Highway Act
Interstate highway system begins with the signing of the Federal-Aid Highway Act -
U.S. Congress approves the first civil rights bill
U.S. Congress approves the first civil rights bill since reconstruction with additional protection of voting rights -
Explorer I
Explorer I, the first U.S. space satellite, is launched by the Army at Cape Canaveral. It would discover the Van Allen radiation belt -
Alaska
Alaska is admitted to the United States as the 49th state to be followed on August 21 by Hawai
