Basements became much more popular in the United States starting in the 1950s. Certain factors contributed to their growing popularity.

When did houses start getting basements?

In the 1950s, basements were more commonly seen in newly built homes.

Where did basements originate?

There's no definitive answer on the origins of the basement, and that's because the basement structure naturally grew out of early cellars. Because it's underground, a basement tends to be naturally cooler than the above-ground structure.