17 December

On 17 December 1843, Charles Dickens' A Christmas Carol was first published. Dickens gave a free recitation of his story in Cardiff on 24 December 1869 when he met the Ninth Doctor and Rose Tyler. (TV: The Unquiet Dead)

In 47 BC, the Seventh Doctor and Ace visited Rome. (PROSE: The Best of Days)

Before the First Doctor and Susan Foreman settled down in Shoreditch in 1963, they took a brief trip to St Albans on this day in 1997 to ensure that the United Kingdom would remain safe during and after the 1960s. Unbeknownst to either of them, the Fourth Doctor and his companions Romana and K9 were in the vicinity on the same day. (PROSE: The Little Things)

In 2006, aboard the SS Elysium, Ruby Duvall was queried by Leslie and Diana about her father and Isobel Watkins. They discussed the supposed Cyberman invasion and mostly found it bogus, little knowing that the Cyber-threat would reach them just a few days later. (PROSE: Iceberg)