Ailill or Oilioll, son of Slanoll, was a legendary High King of Ireland of the 12th century BC. The office of High King of Ireland (Irish: Ard Rí Érenn) was in origin a pseudohistorial construct of the eighth century that placed a king of all Ireland atop the fragmented pyramid of kingship that actually existed at that time. ... (13th century BC - 12th century BC - 11th century BC - other centuries) (1200s BC - 1190s BC - 1180s BC - 1170s BC - 1160s BC - 1150s BC - 1140s BC - 1130s BC - 1120s BC - 1110s BC - 1100s BC - other decades) (3rd millennium BC - 2nd millennium BC - 1st millennium BC) Events 1200 BC - Ancient Pueblo Peoples...

The High Kingship of Ireland was a pseudohistorical construct of the eighth century AD, a projection into the distant past of a political entity that did not become reality until the ninth century. ... Signature page from the Annals of the Four Masters Entry for A.D. 432 The Annals of the Four Masters or the Annals of the Kingdom of Ireland by the Four Masters are a chronicle of medieval Irish history. ... Seathrún Céitinn, known in English as Geoffrey Keating, was a 17th century Irish clergyman, poet and historian. ...

For other personages called Ailill, see Ailill.