Revenue stamps of the United Kingdom
When Ireland was partitioned into Northern Ireland and Southern Ireland in 1921, separate revenue stamps were issued for both entities. Southern Ireland stamps saw little use since that political entity was quickly superseded by the Provisional Government of Ireland and later the Irish Free State (both of which applied overprints on various British and Irish revenue stamps). However, Northern Ireland continued to use separate revenue stamps until the 1980s. Northern Irish revenues include Civil Service, Dog Licence, Excise and National Insurance stamps, among many others.
Falls Curfew
The Northern Ireland riots of August 1969 marked the beginning of the Troubles. In Belfast, Catholic Irish nationalists clashed with Protestant Ulster loyalists and the mainly-Protestant Royal Ulster Constabulary (RUC), Northern Ireland’s police force. Hundreds of Catholic homes and businesses were burnt out and more than 1,000 families, mostly Catholics, were forced to flee. The rioting ended with Operation Banner, the deployment of British troops. In December 1969, the IRA split into the 'Official' IRA and 'Provisional' IRA, with the 'Provisionals' promising to defend Catholic areas.