| 1940 |
Duct tape is invented during World War II. American G.I.s use the strong, versatile adhesive for everything from repairing broken windows to makeshift bandages. |
| 1942 |
The comedy team of Bud Abbott and Lou Costello draws crowds at the box office. "Rosie the Riveter" becomes a symbol for women in the war industries. |
| 1943 |
The Jitterbug is the most popular dance of the year. The zoot suit continues to be the most popular style for American men. |
| 1946 |
The ranch style house gains popularity among homeowners. |
| 1947 |
Jackie Robinson signs with the Brooklyn Dodgers. |
| 1948 |
The Polaroid Land Camera goes on sale. |
