1. Baby Boom
The baby boom is the generation of americans that was born after WWII until the 60s, this was the largest generation in american history.
2. Dr. Jonas Salk
In 1954 successfully tested a polio vaccine. In April 1955 (ten years to the day after President Roosevelt died) they announced that the vaccine was effective and safe.

3. Interstate Highway System
The state and national government decided to spend money to build large roads that would allow people to commute to places shoping centres or other popular and rather new american atractions.

4. Franchise
A frantise is a company that sells its goods in multiple locations. Like Mcdonald's although it has hundreds of stores all over the world they all opperates under the name of McDolald's.

5. In a paragraph, describe in detail how Americans spent their leisure time in the 1950s
The '50s was the decade after the second world war and people were eager to relax after having fought in two world wars. Many new inventions were created and popularised during this time, for instance washing machines, television (although this wasn't invented in the 50s it became very popular during this decade) and other house hold mechanisms. The car was also gaining popularity during the 50s and americans loved to drive around in rocket shaped automobiles.