Where does the “1-10” attractiveness scale come from

american-englishetymology

When did the "1-10" attractiveness or beauty scale become part of our vocabulary?
I've seen quite a few papers and books using a 1-10 attractiveness scale around the 1970s for several purposes and terms like "she's a ten" or "beauty scale" skyrocketed beginning from the 80s and 90s but is there a film or a book that truly popularized the concept?
I found the movie 10 by Blake Edwards and the Ozone's song "she's a ten" as early examples of medium using terms related to the attractiveness scale.

Best Answer

“A perfect 10” was popularized by the romantic comedy film “10,” starring Bo Derek, whose character is considered the perfect woman by the man who courts her. It was released in October 1979. https://en.m.wikipedia.org/wiki/Bo_Derek

But a “perfect 10” was already in use in various sports,especially gymnastics. Ten-pin bowling was also established in the United States in the early 20th century; a strike is a perfect 10.