Battle of Arklow
1798 CE.
Shown on the map at 52.794°, -6.165°.
The Battle of Arklow took place during the Irish Rebellion of 1798 on 9 June when a force of United Irishmen from Wexford, estimated at 10,000 strong, launched an assault into County Wicklow, on the British-held town of Arklow, in an attempt to spread the rebellion into Wicklow and to threaten the capital of Dublin.
Text from the Wikipedia article Battle of Arklow, licensed CC BY-SA 4.0.