History of the Doctor Who Universe
- Sea Base 4 is attacked and taken over by Silurians and Sea Devils, both were massacred followed a release of Hexachromite gas. (DW: Warriors of the Deep)
| Timeline for 2084 |
• 2079 • 2080 • 2082 • 2085 • 2086 • 2087 • 2088 • 2089 • 2090 |
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