1820

In 1820, Reverend Thomas Bright conducted a survey of the Nine Travellers. (TV: The Stones of Blood)

On 3 July, Florence Sundvik was born. (TV: The Curse of Fenric)

The total population of New York City was 123,706, 5,390 of whom were foreign-born. (TV: The Gathering)

In Liverpool, Joseph Williamson oversaw the construction of the Williamson Tunnels. (TV: The Halloween Apocalypse)