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1846
- The original survey at a scale of 6 inches to 1 mile was completed under the direction of Major General Colby. Ireland thus became the first country in the world to be entirely mapped at such a detailed scale. When the survey of the whole country was completed in 1846, it was a world first.
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But it isn't - this was the serious business of State map making - four centuries ago. Today, for the first time, The National Archives is launching a digitised collection of Early Irish maps...
Jun 19, 2024 · How and why the survey began. In early nineteenth century Ireland, land taxation based on the county cess, and earlier surveys such as the Strafford and Down surveys of the seventeenth...
In 1824, the British government decided to initiate a comprehensive series of six-inch maps of Ireland, the first of its kind. The project was entrusted to the British Board of Ordnance, a military body responsible for mapping, which authorised Col. Thomas Colby to supervise.
Nineteenth-century Ireland is well recognised as the first entire country to be mapped systematically at the scale of six-inches-to-one-mile. The Ordnance Survey also gathered geographical, archaeological and toponymical information including local customs, antiquities, place names and topographical features.
The digital outcomes of OS200 aim to advance our understanding of how Ireland was mapped two centuries ago and open up to wider and new audiences the legacies and impacts of the OS, whilst recognising the lasting significance of the survey and marking the bicentenary of its instigation.
The most comprehensive, topographic mapping covering all of Ireland, and Northern Ireland, from the 1820s to the 1960s. For later six-inch mapping of Northern Ireland from the 1960s, view the Irish Grid Series (1960s-1970s).
