Navan Fort, County Armagh. Navan Fort, aka Emain Macha, ancient capital of Ulster. Settlement dates back to the Bronze Age. In 95BC a circular 40m structure was built, burnt down and covered with earth and turf to form the mound, thereafter used for the inauguration of kings. · Patrick Brown · Source · CC BY-SA 2.0
A ceremonial earthwork associated with ancient Emain Macha. Excavation and surviving earthworks distinguish the site from its later literary traditions.
Period tags describe the historical site or interpreted history, not the date of every standing structure.