1889

In 1889, Sarah Jane Smith met Emily Morris and retrieved a piece of Chronosteel. (SJA: Lost in Time) Elsewhere, David visited the World Fair. (NA: The Death of Art)

Henry Gordon Jago and Professor Litefoot first met each other and the Doctor  and fought against Magnus Greel. (DW:  The Talons of Weng-Chiang) They joined together (Jago & Litefoot) to fight against evil in London. (Jago and Litefoot)

Behind the scenes

 * 16 April - Charlie Chaplin was born.
 * 20 April - Adolf Hitler was born.