"Flight To Forever" Timeline, Part I

1953	Martin Saunders visits from 1973 in the time projector.
1973	Saunders, physicist, and Sam Hull, mechanic, leave for 2073.
1993	Saunders visits from 1973.
2008	Saunders and Hull find that this is as far back as they can come from 2073. The energy required approaches infinity. They must seek help in the future.
2013	The automatics, lying in the fire-blackened basement, had struggled a little further back, then stopped, batteries drained.
2023	Charred stumps of the burned house. Energy has drained from the returning projector.
2043	As '63 and '53 but the pit is fresher and the projector is drawing too much energy.
2053	Same as '63 but sun instead of rain.
2063	A stop on the return journey to look for the automatic probes which had neither returned from 2073 to 1973 nor been found in 2073. The pit of the house.
2073	Saunders and Hull arrive from 1973 in the half-filled basement of the 1973 house, take readings and start back.
2200's.	Martian colonists revolt against Terrestrial Directorate. A defeated Directorate army leaps forward in time.
2300's -2600's.	Armageddonists (Fanatics) rule Earth.
2300's.	The Time War. Unsuccessful attack of defeated Directorate army from the 2200's.
2500	Saunders and Hull arrive from 2008, on a hill. Men in black (Fanatics) kill Hull. Saunders flees.
Late 2600's	Planetary League and African Dissenters overthrow Fanatics.
2600's-2800's	Peace and progress. Chronology dating from the ascension of John Mteza I.
2800's	Breakdown. Decay and attacks by barbarians from outer planets.
3000	Saunders, arriving in a besieged city-state, agrees to take the displaced mercenary, Belgotai of Syrtis, with him into the future.
3100	Radioactivity where an atom bomb had destroyed the city.
3200	No radioactivity but a lifeless crater.
3500	A forest.
3600's	Faster than light drive. Interstellar travel.
4100	A dean of the American College informs Saunders and Belgotai by psychophone that it is impossible to return more than 70 years. An atomic engine replaces their batteries and they are given a psychophone.
4300	Nonhuman mercenaries guard Solar mercantile wealth against interstellar raiders and conquerors.
4400	Barbarians sack Earth.