An 8th-century church on the hill
Saint Molibba
The Church of the Ascension is said to have been founded on its present site by Saint Molibba in the 8th century. Molibba is the man who succeeded Saint Kevin as Bishop of Glendalough in 617 or 618 — a long way west of Down — and how exactly he came to leave his name on this drumlin in mid-Down is the kind of question Irish ecclesiastical history shrugs at. The early Irish name of the place, Enaceilte, is preserved in the modern Eanach Eilte. The building has been replaced three times since: rebuilt in 1422, again in 1741, and the present church in 1856.
Added by the Marquess of Downshire in 1768
The graveyard tower
The only piece of older masonry in the village is the ruined tower in the graveyard at the Church of the Ascension. It was added on to the 1741 church by the Marquess of Downshire — the same Hill family who built Hillsborough Castle and most of Hillsborough — in 1768. When the next rebuild came in 1856 the tower was left standing. It is the oldest thing in Annahilt above ground.
How a village grew around a schoolhouse
The school of 1801
Maps from the early 19th century show effectively nothing at Annahilt — a schoolhouse and a handful of dwellings around the crossroads. The primary school was founded in 1801 and is still in operation as Annahilt Primary on the same patch of ground. Most of the village you see today went up in the second half of the 20th century, around that one Georgian schoolhouse. A 200-year-old primary school is an unusual thing to anchor a village on. Annahilt does.