  Neither the world nor science came to an end when the gunfire stopped on 11
November 1918 (close to 11 AM in some time zone), but neither would ever be the
same again. Part I of this inquiry (Observatory 138, 46-58, April 2018) looked
at the development of general relativity under the Rubric of Gerald Holton's
"Only Einstein, only there, only then." Part II (Observatory 138, 98 116, June,
2018) addressed the activities, relativistic, classical, and otherwise of many
(mostly) physicists who were interacting with Einstein, working on relativistic
gravity, or, sometimes, against it, and leaving tracks that can still be
followed. Part III considers some of what happened to Einstein, his theory of
gravity, and related science after the war and, perhaps, because of it. A
subset of the items will probably be familiar -- the 1919 eclipse expedition
and the founding of the International Astronomical Union the same year,
Einsteins 1921 Nobel Prize (for the discovery of the law of the photoelectric
effect). Others perhaps less so, including a flood of books about GR (pro and
con) with the end of paper rationing surely playing a role, AE's 1922 trip to
Paris, and the gory details, swings and roundabouts of gravitational
radiation/waves and the cosmological constant. It is left as an exercise for
the reader to decide which items are primarily scientific and which primarily
political. The long-range issues of "is general relativity the right theory of
gravity?" and "do we have better wars?" come at the end. And I am going to
start in a slightly improbable place.
