Seahenge was not a stone circle rising above a green field. It was a timber monument uncovered by shifting tides and coastal erosion on the intertidal shore near Holme-next-the-Sea in Norfolk. Historic England records a circle of 55 closely spaced oak posts, about 7.5 metres across, surrounding an inverted oak trunk. The timbers were cut in 2049 BCE, placing the structure in the Early Bronze Age. The shoreline setting is central to its story: the monument survived in waterlogged peat until erosion exposed it.
The circle became widely known as “Seahenge” after its discovery attracted media attention in 1998. Its name borrows the better-known Stonehenge, but the comparison can mislead. Archaeologists describe a timber circle, not a conventional stone henge with a bank and ditch. The nickname is a modern label, not evidence of what its builders called it or how they understood the structure. Calling it Holme I is a more technical way to distinguish it from a second prehistoric timber circle found nearby.
