1865

In April 1865, the Fifth Doctor, Peri Brown and Erimem visited the United States as the American Civil War was drawing to a close. (PROSE: Blood and Hope)

On 9 April, the Fifth Doctor prevented U.S. President Abraham Lincoln from being assassinated in Richmond, Virginia by Aaron Eddowes. (PROSE: Blood and Hope) On the 14th, Lincoln was mortally wounded in Ford's Theatre in Washington DC by John Wilkes Booth. (AUDIO: Assassin in the Limelight)

The First Doctor, Vicki Pallister, Ian Chesterton and Barbara Wright visited China. (PROSE: The Eleventh Tiger)

The first transatlantic telegraph cables were laid by Lord Kelvin. (PROSE: Evolution)

American gunfighter and lawman Wild Bill Hickok (1837-1876) reached the height of his notoriety. In the 20th century, he would be commemorated as a folk and western movie hero. In 1999, an employee of a hospital in San Francisco obtained a Wild Bill Hickok costume to wear at a New Year's Eve party. It was appropriated by the newly regenerated Eighth Doctor, who adopted it as his standard mode of dress. (TV: Doctor Who)

Ian Chesterton's paternal great-grandfather Major William "Will" Chesterton had been transferred from India to China by this year. (PROSE: The Eleventh Tiger)