Timeline for How did they build tall and heavy stone buildings in the 19th century?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
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| Jun 23 at 4:18 | history | edited | OldPadawan | CC BY-SA 4.0 |
Formatted link and minor typos
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| Jun 23 at 2:11 | history | answered | MAGolding | CC BY-SA 4.0 |