Have We Already Reached Peak Whisker?

Courtesy of the Nathan Yau’s Flowing Data blog, here is a fascinating look at the prevalence of different types of facial hair from 1840 through the early 1970s:

This is so interesting! I naively assumed that male facial hair fashions came and went through the decades, but here you can plainly see that whiskers have been on a secular decline since a peak that occurred in about 1885. What happened? Was it an improvement of razor technology? Indoor plumbing? It’s incredible that almost 100% of men had facial hair at the turn of the century.

Other mysteries beckon. What’s going on with mustaches in the 19-teens? They shoot up to a peak and then decline almost as quickly. Does this have anything to do with Charlie Chaplin?

And how were these data collected? The only way I can think of is by analyzing old photographs. But wouldn’t that introduce a selection bias? Also, are these data from the U.S.? Europe? What would a worldwide whisker time series look like?

This graph comes from a scholarly article, and I’m sure ┬áit sheds some light on these questions. But I have not read it. As interesting as it must be, I just don’t have time to read journal articles about facial hair.

Finally, there’s the question about what has happened since the 1970s when this was published. We all know that beards are enjoying a bit of a fashion renaissance (although I do suspect that their popularity has reached an inflection point, if not a local maximum). But do they approach the lofty highs of the 1890s?

Maybe in Portland:

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