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.
Canadian newspapers of the 1920s according to one source& American newspapers of the 1950s according to another
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
Three brother, Ben, Charles and Jack Maginnis
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.
A second KKK, called the Klan of the 1920s, was actually formed in 1915 at Stone Mountain, Georgia.
amphetamine use and abuse in the U.S. from the 1950s to the present.
From the 1920s onwards, the women's apparel industry developed along the lines of small, privately-owned, single-product firms. By the late 1950s, things began to change as larger, publicly-held, multi-product firms started.