History: the discovery of frozen yogurt

Frozen yogurt's new concept was first elaborated to be the "healthier, low calorie-low sugar alternative" 

first fro-yo store

and here is a brief timeline about the history of frozen yogurt:   

Note that frozen yogurt was discovered before 5000 BC for yogurt preservation, and not for the concept of ice cream alternative. In fact, that's why many people do not date the beginning of frozen yogurt to that time, but instead say that it was discovered in the 1970's. 

frozen yogurt making "NOW"

frozen yogurt making process "BEFORE"