According to this study, since the 1870s European men have increased in height by 11 centimeters.
They attribute this to better health care and general sanitation.
I was vaguely aware of this idea via the background radiation of all the science information I've consumed over the years, but I wasn't aware it was such a substantial increase.
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Men’s height up 11 cm on average since the industrial age
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If you want to be keenly aware of it visit the roman baths in Trier, Germany (Anywhere probably) Many of the doors & halls are very short which, to me implied the people then were shorter or they would have all had concussions all the time.