- 1662 27 Oct Much in need of money, Charles II sells the strategic port of Dunkirk to Louis XIV of France.
- 1908 27 Oct Parliament approves old age pensions by passing the Old Age Pension Act, championed by the Liberals.
- 1918 27 Oct German commander Erich Ludendorff resigns in protest at Germany seeking an armistice with the Allies.

