Not the greatest website but it summarizes things adequately.
Essentially, (in America)divorce rates steadily climbed until the late 1970s, with a slight dip in the 50s. Starting in the 80s, divorce rates started falling again, and have fallen all the way back down to where they were in 60s. It’s a tricky thing to get a handle on though, because one reason divorce rates have been falling is because many millenials never got married in the first place, when compared to earlier generations.