| 2022-08-07 08:55:50 | Quarryman | Added download link https://files.scene.org/view/parties/2021/vintagecomputingchristmaschallenge21/challenge/ingvarson_windows_mathematica.zip |
| 2021-12-24 21:55:43 | logiker | Updated competition placing info for Christmas Tree (Mathematica) in VCCC 2021 Challenge competition |
| 2021-12-24 21:55:32 | logiker | Updated competition placing info for Christmas Tree (Mathematica) in VCCC 2021 Challenge competition |
| 2021-12-24 21:55:26 | logiker | Updated competition placing info for Christmas Tree in VCCC 2021 Challenge competition |
| 2021-12-24 21:54:58 | logiker | Updated competition placing info for Christmas Tree in VCCC 2021 Challenge competition |
| 2021-12-24 21:53:36 | logiker | Added competition placing for Christmas Tree in VCCC 2021 Challenge competition |