It's not that the people were shorter 100 years ago....(I am 5'1" and am only 1/4 Yugo as my other 4ths are jewish; scottish-irish; polish. My Great-grandparents were both Yugo-slavic and ....well...here it is..: it's not that they people of Yugo were shorter it's that they women were so so so tall!!! LOL! Seriously, My great-grandmother was 6'0", and so was my Great-grandfather. Look at me: I am only what I said above. So, it's not that people are getting taller. That theory in my situation is a line of crap.