post, I referred to the careers of Manse Everard, Dominic Flandry and Gaius Valerius Gratillonius. I mentioned Gratillonius' beginning and end points although not his intermediate role as King of Ys. But another Anderson character arguably achieved more. The phases and high points of David Falkayn's career were:
trade team leader;
savior of Merseia from supernova radiation;
discoverer of Mirkheim;
founder of the Supermetals Company;
acting CEO of Solar Spice & Liquor;
Founder of the colony on Avalon.
And Falkayn's achievements affected Flandry's period:
the Roidhunate of Mersia;
weather stations on Vixen paid for from the Vixenite share in Supermetals;
Avalonian cooperation with Terra against Merseia.
Thus, maybe Falkayn achieved more than either van Rijn or Flandry? - although Flandry did a lot to extend the lifetime of the Terran Empire.
Right now I am mentally juggling:
Anderson's Psychotechnic, Technic and Time Patrol series;
the Andersons' The King Of Ys;
Stirling's Nantucket Trilogy, part of his Change series;
Larsson's Millennium Trilogy, the opening volumes of a projected ten volume series interrupted by the author's death.
I am reading Stirling, rereading Larsson and referencing the Andersons:
the Technic History is a future history;
Nantucket is an alternative history;
the Psychotechnic History is a future history that became an alternative history;
the Time Patrol is historical science fiction;
The King Of Ys is historical fiction with elements of fantasy;
Millennium is contemporary fiction and thus could happen between The King Of Ys and the Technic History.
Pretty smart stuff - with a lot of history of different kinds.