1801

1801 was a year.

Dated
On 1 January, Giuseppe Piazzi discovered a dwarf planet with the Thirteenth Doctor and her friends. This was Yasmin Khan's favourite New Year celebration. (TV: Resolution)

Undated
By 1801, Fitz Kreiner and the other members of the Remote on Anathema were rendered sterile. (PROSE: Interference - Book Two)