I don't agree that "OOP entered the scene and became dominant in a short amount of time", though I guess it depends how you define "entered the scene" (Simula 67? Smalltalk 80? C++ in the mid 80s? Java in the mid 90s?) and "dominant" (presumably the rise of Java as a mainstream language in the late 90s?). Maybe if by OOP you just meant Java?
Note that in the early days of OOP (pre-Java, say the first few years of OOPSLA in the mid to late 80s) there was a lot of overlap between the FP and OOP communities, both because CLOS was one of the pioneers exploring some of far corners of OOP, and because aficionados of weird languages tend to flock together.
Note that in the early days of OOP (pre-Java, say the first few years of OOPSLA in the mid to late 80s) there was a lot of overlap between the FP and OOP communities, both because CLOS was one of the pioneers exploring some of far corners of OOP, and because aficionados of weird languages tend to flock together.