Talk:Phenomenological description

I am an undergrad student at BYU-I and I am editing Wikipedia for a course that I am taking, so I am new this. This article seems to have a good start on the background of the topic. As I read it, I was wondering why there weren't any dates in the "early proponents" section of the article? The information appears to be given in chronological order but there is no information regarding when the scientists lived or when they contributed to this topic. Hannahsandall (talk) 21:56, 29 September 2021 (UTC)