1757 – Addington was born in Holborn, London on May 30, 1757.
1779 – Studied at Winchester and Brasenose College, Oxford, and took up law at Lincoln’s Inn.
1784 – Elected to the House of Commons as a Member of the Parliament for Devizes.
1989 – Appointed as the Speaker of the House of Commons.
1801 – Succeeded Pitt after failing to achieve Catholic emancipation.
1802 – Became Prime Minister after Pitt. Addington’s ministry played a key role in the negotiation of the Treaty of Amiens.
1806-1807 – Became Lord President of the Council under the leadership of Pitt.
1812-1817 – Became Home Secretary, during his term he was responsible for the suspension of habeas corpus.
1844 – Died in Richmond, Surrey on February 15, 1844.