Lester,
Yes, I've heard Bruce use it, with the first time I had heard it as Prez of ASGCA.
As to the original question, both Coore/Crenshaw and Renaisance Design formed in the late 1980's (abot 1989 for both as first comleted new courses) so I would put the start of the minimalism movement at the start of the two most successful firms using that style.
Granted, they must have gotten the idea somewhere before implementing it, but its what gets on the ground that counts.
High Pointe was clearly different than other late 1980's design for TD. For CC, they did a lot of restoration work before getting the big new commissions, honing their style in the mid 80's. As I have stated here before, I was asked at an interview if I was a "restoration architect" about 1989 and hadn't heard the term before, so they were marketing that by that time. (I presume it was them, they got the job)
Jay:
High Pointe opened in 1989, and Renaissance Golf Design was founded the same year [though I built High Pointe in 1987-88, before incorporating].
Other points on the timeline I think you should definitely include:
1991 - opening of The Dunes Club, New Buffalo MI, Mike Keiser's first golf project
1991 or 92 - opening of The Plantation Course, Kapalua, HI, Coore & Crenshaw's first big-splash project
1994 - Sept. 30 - Ron Whitten's cover story in GOLF WORLD, which was the first use of the term "minimalism" that I know of
[they actually used the word on the cover]
1995 [I think] - opening of Sand Hills Golf Club
1999 - opening of Bandon Dunes Resort, and David Kidd's namesake course
2001 - opening of Pacific Dunes
After 2001, I'm not sure which projects qualify as most important. If you're going to try to say minimalism has had an effect on many other architects, then I guess you ought to include Sebonack [which opened in 2006] as helping to spread the word.