I was reading Stillwell's book, Mathematics and its History, and it got me thinking about how research developments in the last two decades (i.e. history for us too, except recent) would be "narrated".
Here's the sort of stuff that makes a period in history memorable:
period of (intense) debate: e.g. the late 1800s and the development of set theory
period of consternation: e.g. the developments of real analysis after Fourier's "disturbing" approach to solving the heat equation in the first two or three decades of the 1800s
period of (initial) unification: Klein's "Erlangen" program, Hilbert's efforts with geometry and logic -- again, late 1800s
period of solidification/modernization: Kolmogorov, Feller and others (and many others) working to axiomatize and develop probability theory in the mid 20th century
A period can have one or more of these labels, and likely there are more labels than the ones I have listed. I know a lot more about the history of the 19th century than the history of the last 50 years. This is understandably because historians haven't yet had the time to chew through recent history, but could current mathematicians at the frontlines be able to do what historians can't yet, and perhaps "narrate" some of the "label worthy" themes of the last half-centry?