As a borderland, war has played an unfortunately large role in Louth's history (and, almost certainly, in pre-historic times too) , including, most infamously, Cromwell's bloody taking of Drogheda in 1649 and, 41 years later, William of Orange's successful crossing of the Boyne just to the west of the town, despite the best efforts of his uncle and father-in-law, James II, to prevent his progress from Carrickfergus to Dublin.
Much of the special character of the county's man-made environment stems from Louth's longstanding role as a borderland, a tradition that dates far back into the prehistoric past, if the localised distribution of several different classes of ancient monuments, especially souterrains (mediaeval 'fall-out shelters'), is anything to go by. The gaps between the barrier of hills and bogs and lakes were augmented by Iron Age earthworks, later given fanciful names like the Black Pig's Dyke, the Dane's Cast and the Dorsey. For more information see the 'Borderlands' website
Now, in this new century, as we move, we hope, away from conflict and bloodshed, we must respect and protect the markers of our sometimes violent past and learn from them how we can create a fairer, more equitable and better, more peaceful future. Our heritage is an important part of who we are and where we have come from. We should cherish it as an essential aspect of a good quality of life for all.
Louth became heavily industrialised in the nineteenth century and one of the major railway pioneers of the country was John Benjamin MacNeill from Mountpleasant, just outside Dundalk. He was involved with one of the greatest engineering feats of his time, the Boyne railway viaduct.