Old Map of County Londonderry by Petty, 1685: Ballymoney, Portrush, Coleraine, Limavady, Downhill Demesne, Roe Valley taride including the northeastern region depicted

including the northeastern region depicted on this map

The map is also interesting for its historical context

Battle of Sentino (295 BC)

Here is a list of notable settlements within the historical boundaries of County Tyrone that were founded before 1840:

Rushville (1825): Home to the Schuyler Jail Museum

Old Map of County Londonderry by Petty, 1685: Ballymoney, Portrush, Coleraine, Limavady, Downhill Demesne, Roe Valley taride including the northeastern region depictedThis map, titled 'County Londonderry', is a detailed political and physical map of County Londonderry, originally published in 1685 by Sir William Petty. It is a later, reduced scale map based on the Down Survey of Ireland, originally undertaken in 1656 to 1658. The Down Survey was the first ever detailed land survey on a national scale anywhere in the world. Its purpose was to measure lands which, following the calamitous English Civil War, much of