Musing about time and science fiction

Beyond Time ~ edited by Sandra Ley, 1976, science fiction, xv + 268 pages

The back cover of this book (that I bought in August of 1968) says that all twenty stories speculate on the fascinating question, "What if?"  They ponder how the world might be staggeringly different if only one event or person had been changed.  The stories include:

1. “The Cliometricon” by George Zebrowski
2. "The Rise of the Sun" by Gordon Eklund
3. "Jupiter Laughs" by Edmund Cooper
4. "Worlds Enough" by Don Thompson
5. "Assault on Fat Mountain" by R. A. Lafferty
6. “O Brave Old World!” by Avram Davidson
7. "Hail to the Chief" by Lucy Cores
8. "Soy la Libertad' by Robert Coulson
9. "The Devil and the Deep Blue Sky" by Robert Chilson
10. “A Class with Dr. Chang” by Ward Moore
11. "Unscheduled Flight" by Juanita Coulson
12. "Alternate Universe I, II, III by Tom Disch
13. “Polonaise” by Alan Dean Foster
14. "U-Genie SX-1--Human Entrepreneur: Naturally Rapacious Yankee" by Dimitri V. Gat
15. "Letter from America" by H. R. Percy
16. "The Napoleonic Wars" by Felix C. Gotschalk
17. "Checkmate in Six Moves" by Olga Lay
18. "Many Rubicons" by Michael Orgill
19. “The Fellini Beggar” by Chelsea Quinn Yarbro
20. "All Possible Worlds" by Laurence M. Janifer

(By the way, the original price on this book from 50 years ago was $1.95.)