Timeline for History of the four-colour problem
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 13, 2012 at 15:49 | comment | added | Brendan McKay | Yes, I was searching in a large magazine database. There were many false hits, so I was lucky to notice the one that mattered. | |
| Jan 13, 2012 at 15:26 | history | edited | Matt Brin | CC BY-SA 3.0 |
deleted 25 characters in body
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| Jan 13, 2012 at 15:14 | history | answered | Matt Brin | CC BY-SA 3.0 |