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The Internet Time Travel Database

Astounding · Analog

Periodicals

Phantoms of Reality

by Ray Cummings
The blurb for the story sets it in “the fourth dimension,” but alas, this refers to a parallel universe, not time travel for Charlie Wilson and his English friend, Captain Derek Mason.
— Michael Main
I have for years been working on the theory that there is another world, existing here in this same space with us. The Fourth Dimension!
“Phantoms of Reality” by Ray Cummings, Astounding Stories of Super-Science, January 1930.

Creatures of the Light

by Sophie Wenzel Ellis
A Teutonic scientist attempts to create a race of artificially created superman who, among other things, can jump a few seconds through time, but only as invisible witnesses to the future goings-on. The story is disturbingly prescient of Nazi ideas of an Aryan Herrenvolk.
— Michael Main
Before Northwood’s horrified sight, he vanished; vanished as though he had turned suddenly to air and floated away.
“Creatures of the Light” by Sophie Wenzel Ellis, in Astounding Stories of Super-Science, February 1930.

Monsters of Moyen

by Arthur J. Burks
When the U.S. is attacked with monsterous submarine/aeroplanes by the demagogue Moyen, it's up to Professor Mariel to find a way to save the country, possibly even through the manipulation of time itself!
— Michael Main
In this, I have even been compelled to manipulate in the matter of time! I must not only defeat and annihilate the minions of Moyen, but must work from a mathematical absurdity, so that at the moment of impact that moment itself must become part of the past, sufficiently remote to remove the monsters at such distance from the earth that not even the mighty genius of Moyen can return them!
“Monsters of Moyen” by Arthur J. Burks, Astounding Stories of Super-Science, April 1930.

The Readers’ Corner

by multiple writers
Before modern-day blogs and online forums, before Astounding’s Brass Tacks letters’ column, there was Astounding’s first letters column, the Readers’s Corner, where at the leisurely pace of once a month, readers vehemently mixed it up about all topics—including time travel. We’re unlikely to add other letters columns to the ITTDB, but we couldn’t resist these missives.
— Ruthie Mariner
Dear Editor: Thus far the chief objection to time traveling has been this: if a person was sent back into the past or projected into the future, it would be possible for said person to interfere most disastrously with his own birth. —Arthur Berkowitz, 768 Beck Street, Bronx, N.Y. (Mar 1932)

Dear Editor: I write this letter to comment, not on the stories, which satisfy me, but on a few letters in the “Corner” of the March issue; especially Mr. Berkowitz’ letter. . . . Since he brought up the question of the time-traveler interfering disastrously with his own birth, I will discuss it. . . . Back he goes into time and meets his grandfather, before his father’s birth. For some reason John kills his grandfather. —Robert Feeney, 5334 Euclid, Kansas City, Mo. (Jun 1932)

Dear Editor: I read and enjoyed Mr. Feeney’s interesting letter in the June issue, but wish to ask: Why pick on grandfather?. . . This incessant murdering of harmless ancestors must stop. —Donald Allgeier, Mountain Grove, Mo. (Jan 1933)

The Readers’ Corner by multiple writers, Astounding Stories of Super-Science and its later instantiations, April 1930 to March 1933.

The Atom-Smasher

by Victor Rousseau
We've got the evil Professor Tode (who modifies an atom-smasher into a time machine that travels to the Palaeolithic and to Atlantis), a fatherly older professor, his beautiful young daughter (menaced by evil Tode), casually written racist pronouncements (by Rousseau), and our hero scientist, the dashing Jim Dent. But my favorite sentence was the brief description of quantum mechanics, which I didn’t expect in a 1930 science fiction tale.
— Michael Main
The Planck-Bohr quantum theory that the energy of a body cannot vary continuously, but only by a certain finite amount, or exact multiples of this amount, had been the key that unlocked the door.
“The Atom-Smasher” by Victor Rousseau, Astounding Stories of Super-Science, May 1930.

Silver Dome

by Harl Vincent
In an underground city, Queen Phaestra uses a past-viewing machine of vague nature to show the destruction of Atlantis to two good-hearted men. But Atlantis itself is not visited, and there are no time phenomena apart from the viewing.
— Michael Main
This is accomplished by means of extremely complex vibrations penetrating earth, metals, buildings, space itself, and returning to our viewing and sound reproducing spheres to reveal the desired past or present occurrences at the point at which the rays of vibrations are directed.
“Silver Dome” by Harl Vincent, in Astounding Stories of Super-Science, August 1930.

2 stories (1931–1931)

Tommy Reames in the Fifth-Dimension

by Murray Leinster
In the first novella (“The Fifth-Dimension Catapult”), physicist Tommy Reames and mechanic Smithers must rebuild the broken machinery that’s catapulted Professor Denham and his beautiful daughter into a parallel dimension of vicious jungle people, strange life forms, and a beautiful golden city. And gadzooks! In the second novella (“The Fifth-Dimension Tube”), the vicious fifth-dimensioners invade Earth! But despite the suggestive titles and citations of both stories in Nahin’s Time Machine, the stories involve only handwaving about time and space dimensions, minor enough that we don’t even count it as a time phenomenon.
— based on Frank J. Bleiler
Because the article on dominant coordinates had appeared in the Journal of Physics and had dealt with a state of things in which the normal coordinates of everyday existence were assumed to have changed their functions; when the coordinates of time, the vertical, the horizontal and the lateral changed places and a man went east to go up and west to go “down” and ran his streat-numbers in a fourth dimension.
Tommy Reames in the Fifth Dimension, 2 stories by Murray Leinster, 2 stories, Astounding Stories of Super-Science, January 1931 and January 1933.

The Meteor Girl

by Jack Williamson
When a meteor lands on the beachfront airfield of our narrator and his partner Charlie King, Charlie realizes that it provides a space-time portal through which they view the death-at-sea of Charlie’s ex-fiancée.
— Michael Main
A terrestrial astronomer may reckon that the outburst on Nova Persei occurred a century before the great fire of London, but an astronomer on the Nova may reckon with equal accuracy that the great fire occurred a century before the outburst on the Nova.
“The Meteor Girl” by Jack Williamson, Astounding, March 1931.

The Exile of Time

by Ray Cummings
George Rankin and his best friend Larry rescue a hysterical Mistress Mary Atwood from a locked New York City basement only to find that she believes she’s come from more than 150 years in the past, chased by a crazy man named Tugh and his mad robot, Migul.
Let’s try and reduce it to rationality. The cage was—is, I should say, since of course it still exists—that cage is a Time-traveling vehicle. It is traveling back and forth through Time, operated by a Robot.
The Exile of Time by Ray Cummings, 4-pt serial, Astounding Stories, April to July 1931.

The Man from 2071

by Sewell Peaslee Wright
Special Patrol Service officer John Hanson (hero of ten Wright stories) stumbles upon a mad inventor who has traveled many centuries to Hanson’s beachfront Denver in order to obtain knowledge that will let him become the absolute, unquestioned, supreme master back in the 21st century.
I could not help wondering, as we settle swiFTLy over the city, whether our historians and geologists and other scientists were really right in saying that Denver had at one period been far from the Pacific.
“The Man from 2071” by Sewell Peaslee Wright, Astounding, June 1931.

The Hands of Aten

by Harry Bates and D. W. Hall
“The Hands of Aten” by Harry Bates and D. W. Hall, Astounding Stories, July 1931.

When the Sleepers Woke

by Arthur Leo Zagat
“When the Sleepers Woke” by Arthur Leo Zagat, Astounding Stories, November 1931.

Out around Rigel

by Robert H. Wilson
“Out around Rigel” by Robert H. Wilson, Astounding Stories, December 1931.

The Einstein See-Saw

by Miles J. Breuer
“The Einstein See-Saw” by Miles J. Breuer, Astounding Stories, April 1932.

Hellhounds of the Cosmos

by Clifford D. Simak
“Hellhounds of the Cosmos” by Clifford D. Simak, Astounding Stories, June 1932.

The End of Time

by Wallace West
It would seem that the only people on Earth whose perception of time hasn’t ground to a stop are the three—Dr. Manthis, his golden-haired daughter June, and radio engineer Jack Baron—who took Manthis’s hashish injection. But how are they to bring the rest of humanity back to speed?
— Michael Main
Think a minute. If the watch seems running double speed that would indicate that your perception of its movements had slowed down fifty per cent.
“The End of Time” by Wallace West, Astounding Stories of Super-Science, March 1933.

Wanderer of Infinity

by Harl Vincent
When Joan Carmody sends a plea to her ex-boyfriend Bert Redmond, he barrels from Indiana to upstate New York in a trice, only to see Joan and her borderline-mad brother Tom kidnapped by metal monsters from another dimension. Fortunately, a mourning, immortal wanderer through time and space also sees the abduction and fills in Bert with all the salient details and some unsalient ones, too.
— Michael Main
“We are here only as onlookers,” the Wanderer explained sadly, “and can have no material existence here. We can not enter this plane, for there is no gateway. Would that there were.”
“Wanderer of Infinity” by Harl Vincent, in Astounding Stories of Super-Science, March 1933.

Race through Time 1

A Race through Time

by Donald Wandrei
Evil Daniel kidnaps Ellen and takes her to the year 1,000,000 A.D. via metabolic speed-up! Not to worry. Good and compassionate Webster follows via relativistic time dilation!
— Michael Main
What I’ve done is to build a time-space traveler, working by atomic energy. Even as long ago as 1913, you know, Rutherford succeeded in partly breaking down the hydrogen atom. By 1933, others succeeded in partially breaking down atoms with high voltages of electricity. But they used up far more energy than they got back, or released. I’ve simply perfected the method to a point where, with an initial bombardment of fifty volts, I can break down one atom and get back thousands of times the energy I put in. There’s nothing strange or wonderful or miraculous about it. I don’t create energy of power from nothing. I simply liberate energy that already exists. Part of the power I use to break down another atom, and so on, while the rest is diverted to propel the torpedo by discharging through tubes—like a rocket. I’ve made one short experimental trip.
“A Race through Time” by Donald Wandrei, Astounding Stories, October 1933.

Ancestral Voices

by Nat Schachner
Time traveler Emmet Pennypacker kills one ancient Hun without realizing who will disappear from the racist world of 1935.
— Michael Main
The year of grace 1935! A dull year, a comfortable year! Nothing much happened. The depression was over; people worked steadily at their jobs and forgot that they had every starved; Roosevelt was still President of the United States; Hitler was firmly ensconced in Germany; France talked of security; Japan continued to defend itself against China by swallowing a few more provinces; Russia was about to commence on the third Five Year Plan, to be completed in two years; and, oh, yes—Cuba was still in revolution.
“Ancestral Voices” by Nat Schachner, Astounding, December 1933.

A Race Through Time 2

Farewell to Earth

by Donald Wandrei
Perhaps you recall that in Wandrei’s first story, “A Race through Time,” good and compassionate Webster was trapped in the year AD 1,001950, exactly 1,950 years after the time when his true love, Ellen, was taken by that cad Daniel. So what is left for him on this barren Earth?
I am the daughter of Ellayn, who was the daughter of Ellayn, until far back there was the first Ellayn. She and Worin were the first two.
“Farewell to Earth” by Donald Wandrei, in Astounding Stories, December 1933.

Terror Out of Time

by Jack Williamson
Until I started reading 1930s pulps, I didn’t realize how ubiquitous were the scientist with a beautiful daughter and her adventurous fiancé. This story has Dr. Audrin, his machine (to project the brain of a present-day man forty million years into the future and possibly bring another mind back), his beautiful daughter Eve, and her manly fiancé, Terry Webb. Manly Webb agrees to be the test subject for the machine, much to the dismay of beautiful Eve.
— Michael Main
I must have a subject. And there is a certain—risk. Not great, now, I’m sure. My apparatus is improved. But, in my first trial, my subject was—injured. I’ve been wondering, Mr. Webb, if you—
“Terror Out of Time” by Jack Williamson, Astounding, December 1933.

Scandal in the 4th Dimension

by Amelia Reynolds Long
Scandal in the 4th Dimension by Amelia Reynolds Long, Astounding Stories, February 1934.

The Man Who Never Lived

by Donald Wandrei
“The Man Who Never Lived” by Donald Wandrei, Astounding Stories, March 1934.

The Upper Level Road

by F. Orlin Tremaine
“The Upper Level Road” by F. Orlin Tremaine, Astounding Stories, August 1935.

The Fourth-Dimensional Demonstrator

by Murray Leinster
Pete Davidson has inherited all the properties of an uncle who had been an authority on the fourth dimension, including the Fourth-Dimensional Demonstrator that can pull copies of matches, coins, dollar bills, fiancées, and kangaroos out of the past.
— Michael Main
“These,” said Pete calmly, “are my fiancée.”
“The Fourth-Dimensional Demonstrator” by Murray Leinster, Astounding, December 1935.

Elimination

by John W. Campbell, Jr.
“Elimination” by John W. Campbell, Jr., Astounding Stories, May 1936.

Reverse Universe

by Nat Schachner
“Reverse Universe” by Nat Schachner, Astounding Stories, June 1936.

Infinity Zero

by Donald Wandrei
“Infinity Zero” by Donald Wandrei, Astounding Stories, October 1936.

The Fourth Dynasty

by R. R. Winterbotham
“The Fourth Dynasty” by R. R. Winterbotham, Astounding Stories, December 1936.

Sands of Time 1

The Sands of Time

by P. Schuyler Miller
Terry Donovan realizes that it’s possible to travel through time in 60,000,000-year increments, so naturally he travels back to the Cretaceous where he meets dinosaurs and aliens.

This story was under Tremaine’s Astounding editorship, but the sequel, “Coils of Time,” (May 1939) appeared after Campbell became editor.

— Michael Main
Incidentally, I have forgotten the most important thing of all. Remember that Donovan’s dominating idea was to prove to me, and to the world, that he had been in the Cretaceous and hobnobbed with its flora and fauna. He was a physicist by inclination, and had the physicist’s flair for ingenious proofs. Before leaving, he loaded a lead cube with three quartz quills of pure radium chloride that he had been using in a previous experiment, and locked the whole thing up in a steel box.
“Sands of Time” by P. Schuyler Miller, in Astounding Stories, April 1937.

Temporary Warp

by Frank Belknap Long
“Temporary Warp” by Frank Belknap Long, Astounding Stories, August 1937.

Lost in the Dimensions

by Nat Schachner
“Lost in the Dimensions” by Nat Schachner, Astounding Stories, November 1937.

The Time Contractor

by Otto Binder
“The Time Contractor” by Otto Binder, Astounding Stories, December 1937.

Anachronistic Optics

by Moses Schere
“Anachronistic Optics” by Moses Schere, Astounding Stories, February 1938.

Eye of the Past

by Otto Binder
“Eye of the Past” by Otto Binder, Astounding Science-Fiction, March 1938.

Flight of the Dawn Star

by Robert Moore Williams
“Flight of the Dawn Star” by Robert Moore Williams, Astounding Science-Fiction, March 1938.

Matter Is Conserved

by Raymond A. Palmer
“Matter Is Conserved” by Raymond A. Palmer, Astounding Science Fiction, April 1938.

Rule 18

by Clifford D. Simak
“Rule 18” by Clifford D. Simak, Astounding Science-Fiction, July 1938.

The Time Bender

by Oliver Saari
“The Time Bender” by Oliver Saari, Astounding Science Fiction, August 1938.

The Einstein Inshoot

by Nelson S. Bond
“The Einstein Inshoot” by Nelson S. Bond, Astounding Science-Fiction, November 1938.

Sands of Time 2

Coils of Time

by P. Schuyler Miller
You’ll need some patience with “Coils of Time," seeing as how it takes the hero, Rutherford Bohr Adams, twenty-some pages before you’ll realize that the story is a sequel to “The Sands of Time,” and it’s going to fall to space pilot Adams to travel through the 60-million-year coils of times into the future and the past, saving Earth from the evil Martians and their zombies, while also saving his own boss’s beautiful daughter from a fate worth than death.
— Michael Main
It’s another form of the space-time field that I use in the Egg to bridge the gap between the coils of time.
“Coils of Time” by P. Schuyler Miller, Astounding Science-Fiction, May 1939.

Life-Line

by Robert A. Heinlein
“Life-Line” by Robert A. Heinlein, Astounding Science-Fiction, August 1939.

Hindsight

by Jack Williamson
Years ago, engineer Bill Webster abandoned Earth for the employ of the piratical Astrarch far beyond the orbit of Mars; now the Astrarch is aiming the final blow at a defeated Earth, and Bill wonders whether the gun sights he invented can spot—and change!—events in the past.
— Michael Main
The tracer fields are following all the world lines that intersected at the battle, back across the months and years. The analyzers will isolate the smallest—hence most easily altered—essential factor.
“Hindsight” by Jack Williamson, Astounding, May 1940.

The Geometrics of Johnny Day

by Nelson S. Bond
“The Geometrics of Johnny Day” by Nelson S. Bond, Astounding Science-Fiction, July 1941.

The Door

by Oliver Saari
“The Door” by Oliver Saari, Astounding Science Fiction, November 1941.

The Twonky

by Henry Kuttner and C. L. Moore
A man, dazed from running into a temporal snag, appears in a radio factory, whereupon (before returning to his own time) he makes a radio that’s actually a Twonky, which promptly gets shipped to a Mr. Kerry Westerfield, who is initially quite confounded and amazed at everything it does.

Because of the story’s opening, I’m convinced the Twonky is from the future. The “temporal snag” that brought it to 1942 feels like an unexpected time rift to me, although the route back to the future is an intentional journey via an unexplained method.

— Michael Main
“Great Snell!” he gasped. “So that was it! I ran into a temporal snag!”
“The Twonky” by Henry Kuttner and C. L. Moore, Astounding Science-Fiction, September 1942.

Minus Sign

by Jack Williamson
“Minus Sign” by Jack Williamson, Astounding Science-Fiction, November 1942.

Not to Be Opened—

by Peter Grainger
“Not to Be Opened—” by Peter Grainger, Astounding Science Fiction, November 1942.

The Search

by A. E. van Vogt
When salesman Ralph Carson Drake tries to recover his missing memory of the past two weeks, he discovers he had interactions with three people: a woman named Selanie Johns who sold remarkable futuristic devices for one dollar, her father, and an old gray-eyed man who is feared by Selanie and her father.

Van Vogt combined this with two other stories and a little fix-up material for his 1970 publication of Quest for the Future.

— Michael Main
The Palace of Immortality was built in an eddy of time, the only known Reverse, or Immortality, Drift in the Earth Time Stream
“The Search” by A. E. van Vogt, Astounding, January 1943.

Unthinking Cap

by John R. Pierce
“Unthinking Cap” by John R. Pierce, Astounding Science-Fiction / Science Fact, July 1943.

Interference

by Murray Leinster
“Interference” by Murray Leinster, Astounding Science Fiction, October 1945.

What You Need

by Henry Kuttner and C. L. Moore
Reporter Tim Carmichael visits Peter Talley, a shopkeeper on Park Avenue who provides things that his select clientele will need in the future.

I don’t always include prescience stories in my list, but like Heinlein’s “Life-Line,” this one is an exception, both because of the origin of Peter Talley’s prescience and because it was made into episodes of Tales of Tomorrow (the TV show) and [work-142 | The Twilight Zone[/ex].

— Michael Main
By turning a calibrated dial, I check the possible futures
“What You Need” by Henry Kuttner and C. L. Moore, in Astounding Science Fiction, October 1945.

Special Knowledge

by A. Bertram Chandler
A man in WW2 Britain trades minds with his descendant, an officer on a spaceship. They are shipwrecked on Venus, where his 20th century seaman’s experience saves the day.
— Dave Hook
“Special Knowledge” by A. Bertram Chandler, Astounding Science Fiction, February 1946.

A Guest in the House

by Frank Belknap Long
“A Guest in the House” by Frank Belknap Long, Astounding Science Fiction, March 1946.

The Cure

by Henry Kuttner and C. L. Moore
“The Cure” by Henry Kuttner and C. L. Moore, Astounding Science Fiction, May 1946.

Rescue Party

by Arthur C. Clarke
Only a smidgen of unimportant time phenomena in the first paragraph of this ominous first contact story.
— Michael Main
But Alveron and his kind had been lords of the Universe since the dawn of history, since that far distant age when the Time Barrier had been folded round the cosmos by the unknown powers that lay beyond the Beginning.
“Rescue Party” by Arthur C. Clarke, Astounding Science Fiction, May 1946.

Housing Shortage

by Harry Walton
“Housing Shortage” by Harry Walton, Astounding Science Fiction, January 1947.

Time to Die

by Murray Leinster
“Time to Die” by Murray Leinster, Astounding Science Fiction, January 1947.

Collector’s Item

by Frank Belknap Long
“Collector’s Item” by Frank Belknap Long, Astounding Science Fiction, October 1947.

Private Eye

by Henry Kuttner and C. L. Moore
A jilted man plans murderous revenge while trying to avoid any behavior that would reveal his plans to the government’s all-seeing technology that can reconstruct the past from electromagnetic and sound waves.
— Michael Main
It was sensitive enough to pick up the “fingerprints” of light and sound waves imprinted on matter, descramble and screen them, and reproduce the image of what had happened.
“Private Eye” by Henry Kuttner and C. L. Moore, Astounding Science Fiction, January 1949.

Next Friday Morning

by D. W. Barefoot
“Next Friday Morning” by D. W. Barefoot, Astounding Science Fiction, February 1949.

All Our Yesterdays

by John D. MacDonald
“All Our Yesterdays” by John D. MacDonald, Super Science Stories, April 1949.

Reversion

by M. C. Pease
“Reversion” by M. C. Pease, Astounding Science Fiction, December 1949.

A Bit of Forever

by Walt Sheldon
“A Bit of Forever” by Walt Sheldon, Super Science Stories, July 1950.

Demotion

by Robert Donald Locke
“Demotion” by Robert Donald Locke, Astounding Science Fiction, September 1952.

The Wings of a Bat

by Pauline Ashwell
“The Wings of a Bat” by Pauline Ashwell, Analog Science Fiction / Science Fact, May 1966.

Light of Other Days

by Bob Shaw
On a driving holiday in Argyll, Mr. and Mrs. Garland hope to find a way out of their hateful marriage, but instead they find a field of slow glass harvesting the light of other days.
— Michael Main
Apart from its stupendous novelty value, the commercial success of slow glass was founded on the fact that having a scenedow was the exact emotional equivalent of owning land.
“Light of Other Days” by Bob Shaw, Analog Science Fiction/Science Fact, August 1966.

Dragonriders of Pern 1A

Weyr Search

by Anne McCaffrey
Time travel doesn’t yet occur in this first of the Pern stories, but hop on over to the second story for the first display of a dragon jumping between times.
— Michael Main
The danger was definitely not within the walls of Hold Ruath. Nor approaching the paved perimeter without the Hold where relentless grass had forced new growth through the ancient mortar, green witness to the deterioration of the once stone-clean Hold.
“Weyr Search” by Anne McCaffrey, Analog Science Fiction / Science Fact, October 1967.

Dragonriders of Pern 1B

Dragonrider

by Anne McCaffrey
By the time that Lessa of Ruatha Hold becomes Weyrwoman of the only remaining dragon weyr, the end of all Pern seems imminent since a single weyr is not enough to fight off the falling threads from the Red Star.

“Dragonrider,” which was first released as a two-part Analog serial (December 1967 and January 1968), was the second Pern story, appearing after the shorter novella “Weyr Search” (October 1967). Together, the two stories formed the first Pern novel, Dragonflight (1968). When the online version of the ITTDB was in a nascent stage, my friend Allison Thompson-Brown reminded me that the dragons can travel to a new when as well as a new where, and that time travel first appeared near the end of “Dragonrider.” Time travel on Pern occurs in a single, static timeline, so the dragons and their riders can never change anything known to be certain in the past.

— Michael Main
“Dragons can go between times as well as places. They go as easily to a when as to a where.”

Robinton’s eyes widened as he digested this astonishing news.

“That is how we forestalled the attack on Nerat yesterday morning. We jumped back two hours between times to meet the Threads as they fell.”

“Dragonrider” by Anne McCaffrey, 2-part serial, Analog Science Fiction / Science Fact, December 1967 to January 1968.

Hawk among the Sparrows

by Dean McLaughlin
“Hawk among the Sparrows” by Dean McLaughlin, Analog Science Fiction / Science Fact, July 1968.

FTA

by George R. R. Martin
“FTA” by George R. R. Martin, Analog Science Fiction / Science Fact, May 1974.

“Old Friends across Time”

by Paul J. Nahin
“‘Old Friends Across Time’” by Paul J. Nahin, Analog Science Fiction / Science Fact, May 1979.

One Time in Alexandria

by Donald Franson
“One Time in Alexandria” by Donald Franson, Analog Science Fiction / Science Fact, June 1980.

Twin Paradox

by Robert L. Forward
“Twin Paradox” by Robert L. Forward, Analog Science Fiction / Science Fact, August 1983.

The State 2

The Integral Trees

by Larry Niven
The Integral Trees by Larry Niven, 4 pts., Analog Science Fiction / Science Fact, October 1983 to [Error: Missing '[/ex]' tag for wikilink]

Dinosaurs

by Geoffrey A. Landis
“Dinosaurs” by Geoffrey A. Landis, Analog Science Fiction / Science Fact, June 1985.

The State 3

The Smoke Ring

by Larry Niven
The Smoke Ring by Larry Niven, 4 pts., Analog Science Fiction / Science Fact, January 1987 to [Error: Missing '[/ex]' tag for wikilink]

Twisters

by Paul J. Nahin
“Twisters” by Paul J. Nahin, Analog Science Fiction / Science Fact, May 1988.

Gravesite Revisited

by Elizabeth Moon
“Gravesite Revisited” by Elizabeth Moon, Analog Science Fiction / Science Fact, mid-December 1988.

The Best Is Yet to Be

by John Gribbin
“The Best Is Yet to Be” by John Gribbin, Analog Science Fiction and Fact, February 1989.

The Plot to Save Hitler

by W. R. Thompson
“The Plot to Save Hitler” by W. R. Thompson, Analog Science Fiction and Fact, September 1993.

The Real Physics of Time Travel

by Ian Stewart
“The Real Physics of Time Travel” by Ian Stewart, Analog Science Fiction and Fact, January 1994.

The Tetrahedron

by Charles L. Harness
“The Tetrahedron” by Charles L. Harness, Analog Science Fiction and Fact, January 1994.

An M-1 at Fort Donelson

by Charles L. Fontenay
“An M-1 at Fort Donelson” by Charles L. Fontenay, Analog Science Fiction and Fact, July 1994.

The Life of Your Time

by Poul Anderson
“The Life of Your Time” by Poul Anderson, Analog Science Fiction / Science Fact, September 1995.

A Worm in the Well

by Gregory Benford
“A Worm in the Well” by Gregory Benford, Analog Science Fiction and Fact, November 1995.

Finalizing History

by Richard K. Lyon
In early 1960, Perry Mason author Earl (not Erle) Stanley Gardner and his wife host John W. Campbell, Robert Heinlein, Clifford Simak, Edward Teller, Ronald Reagan, Douglas MacArthur and Jackie Kennedy to discuss a shared dream in which a time-traveling alien requires them to pick one person to eliminate from history as a prerequisite to a final revision of mankind’s history.
— Michael Main
If one of these people dies young, that will pay your debt.
“Finalizing History” by Richard K. Lyon, in Analog, June 2008.
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