The founding father of something - Idioms by The Free Dictionary
the founding father of something
founding father (of something)
A man who was instrumental in the creation or pioneering of something. Many consider Alexander Fleming to be the founding father of modern antibiotics. The day is a celebration of the founding fathers of the small country.
the ˌfounding ˈfather(s) of something (formal) the people who found or start a country, an organization, a branch of science, etc: Charles Babbage, the founding father of computer science