1920s to 1950s
Because they were bored.
The practice was introduced in the 1920s and had gained widespread acceptance by the 1950s
They used national attention and support to influence the national government to force the states to change civil rights and voting policies.
some major cities that change in the 1950s were the African-Americans, Lations, and the Native Americans.
Experimental helicopters existed from the 1920s through the 1950s. Choppers came into their own in the 1960s. Helicopter generation=1960s
No, the whoopee cushion was not invented in the 1950s. It is believed to have been created in the 1920s, with its popularity skyrocketing in the following decades. The device has become a classic prank toy, known for its humorous sound effects.
Three brother, Ben, Charles and Jack Maginnis
A second KKK, called the Klan of the 1920s, was actually formed in 1915 at Stone Mountain, Georgia.
It was derived in the 1950s, from RADAR screens and TV sets developed in the 1930s, which were derived from oscilloscopes developed in the 1920s.
One technological advance that did not become popular in the 1920s was the television. While early prototypes were developed during this time, it wasn't until the 1950s that television became a common household item.
amphetamine use and abuse in the U.S. from the 1950s to the present.