2017 — Kenyan runner Mary Keitany breaks Paula Radcliffe’s women-only marathon world record with a third victory in London. Keitany completes the 26.2-mile course in 2 hours, 17 minutes and 1 second ...

And fourthly, how many of you were alive to see, say, Christy Ring, Mary Peters, Jack Kyle, Ronnie Delany and Mick O’Connell ...