19 September

According to her Torchwood records, on 19 September 1981, Torchwood Three operative Toshiko Sato was born in London. (TV: Exit Wounds) Another source, however, suggested that she was instead born in July 1975. (TV: Greeks Bearing Gifts)

Charley Pollard and Viola Learman arrived on this day from the mid-21st century. (AUDIO: The Time of the Daleks)

In 1835, the Sixth Doctor and Evelyn Smythe met Charles Darwin on the Galapagos Islands. (AUDIO: Bloodtide)