| 时间线 |
| 上世纪：56世纪 下世纪：58世纪 |
| 相关年份 |
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目前还没有关于57世纪具体年份的信息。 |
In the 57th century, the human race was at war with the Chelonians. The Seventh Doctor sent Ace to the war to help out the humans. (COMIC: The Last Word)
The Bovians were almost wiped out. (AUDIO: Iris at the Oche)