Historedia
Person

Thomas Clarkson

Events
4
Episodes
6
Years
1787–1881

Every event in Historedia whose sources name Thomas Clarkson, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Founding of Society for Effecting the Abolition of the Slave Trade

    1787

    Role: Co-founder; subsequently promoted the society's cause through speaking tours and publications

    1. 22 May 1787 · London, where the society's inaugural committee meeting took placeFounding of the Society for Effecting the Abolition of the Slave Trade

      A twelve-member committee of nine Quakers and three Anglicans met in London on 22 May 1787, founding the abolitionist society with Sharp's position unanimously agreed.

    2. 28 October 1787 (tour during 1787) · Tour of English ports and cities; Manchester speechClarkson's 1787 Speaking Tour and Manchester Speech

      Later in 1787, Clarkson toured England's ports and cities raising public interest, and his 28 October Manchester speech galvanized the city's anti-slavery campaign.

  2. Petition for transfer of Sierra Leone Company amid slave-trade abolition

    1807

    Role: Abolitionist

    1. 25 March 1807 · Royal CourtRoyal Assent

      The Slave Trade Act 1807 received royal assent from King George III on 25 March 1807.

  3. Clarkson Memorial unveiled in Wisbech

    1880–1881

    Role: Commemorated subject

    1. 28 October 1880 · Wisbech, Isle of Ely, CambridgeshireConstruction Start

      Work on the Clarkson Memorial began in October 1880 at a central location in Wisbech, chosen for its prominence.

    2. 11 November 1881 · Wisbech, Isle of Ely, CambridgeshirePublic Unveiling

      Sir Henry Brand unveiled the statue on 11 November 1881, completing the memorial to Thomas Clarkson in Wisbech.

  4. First stone laid for the Clarkson Memorial in Wisbech

    1880

    Role: Commemorated subject

    1. 28 October 1880 · Central position in WisbechLaying of the First Stone

      The first stone for the Clarkson Memorial was laid in Wisbech on 28 October 1880, marking the start of construction.

Sources

  1. Thomas Clarkson Wikipedia, revision of 2026-08-31
  2. Society for Effecting the Abolition of the Slave Trade Wikipedia, revision of 2026-09-28
  3. Sierra Leone Company Wikipedia, revision of 2026-09-23
  4. Clarkson Memorial Wikipedia, revision of 2026-08-07