Timeline for How can I prevent the invention of skyscrapers?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 20, 2020 at 19:52 | comment | added | Galaxy | This is precisely the idea of an arcology. | |
| Apr 20, 2020 at 17:31 | history | answered | M. A. Golding | CC BY-SA 4.0 |