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**PeterN[_7_]** · November 28th 17, 03:14 AM posted to rec.photo.digital,alt.photography

On 11/27/2017 10:03 AM, wrote:

snip

If you've seen those old time B&W pictures from the 1800s. you'll notice
that no one smiled and never showed their teeth. I dont know if this is
true, but I was told by someone who seems to know history, that the
reason they did not smile was because many of them lacked teeth, or had
bad looking teeth. Considering the lack of dentistry back then, this
could have likely been true for particularly older people.

My theory is:
Bad teeth make if difficult to chew. That's why barbecue, a method of
making meat tender, became so popular.

--
PeterN