Five (And More) Future Histories

We have often listed "future histories," including Poul Anderson's several such series or single works. Let us now focus on just five interconnected future histories:

Poul Anderson's Technic History and Larry Niven's Known Space series are arguably the most significant successors to Robert Heinlein's original Future History;

Anderson's Psychotechnic History, modelled directly on the Future History, occupies a position intermediate between the Future and Technic Histories;

despite the prominence of his Known Space series, Niven presents an entirely different history of the future in his "State" series -

A World Out Of Time

The Integral Trees

The Smoke Ring

In Volume I, two individuals from different periods make relativistic round trips to the galactic core whereas, in Volumes II and III, an interstellar crew has mutinied and colonized the Smoke Ring.

I am currently rereading The Integral Trees when not rereading Anderson's Brain Wave.

A list of Niven's series at the end of his Tales Of Known Space places "Rammer," the first part of A World Out Of Time, in the short Leshy Circuit sequence which is also about Bussard ramjets. Teleportation booths are common to Known Space, the State and a separate "Teleportation" series. Niven begins to rival Anderson in the number of his alternative future history series.