An Iron Age Sacrifice
In a peat bog on the Danish island of Als, turf cutters in the 1880s uncovered the remains of an ancient vessel. Formal excavations between 1921 and 1922 revealed the Hjortspring Boat, a sophisticated war canoe from the Pre-Roman Iron Age. Radiocarbon dating of lime bast cordage used in its construction places the boat's sinking between 381 and 161 BCE. This is the oldest preserved plank-built boat ever found in Scandinavia.
The boat's construction demonstrates advanced woodworking skill. It measures over 19 meters long and 2 meters wide, yet weighs only an estimated 530 kilograms. The hull consists of five planks of linden wood, with a single plank forming the bottom and keel. These were not held by metal rivets, but meticulously "sewn" together with cords of lime bark. Hazel limbs form the ribs, which are lashed to cleats carved directly into the planks. This technique created a light and portable watercraft. With a crew of around 24 men, the boat could be easily carried and was ideally suited for navigating shallow waters.
The Arsenal of a Lost Army
The Hjortspring Boat was not empty when discovered. It contained a large votive offering: the complete military equipment of a defeated invading force. The find included 138 iron spearheads, 31 spearheads made of bone or antler, 11 single-edged iron swords, and the remains of several chainmail coats. One of the iron spearheads measures 43.5 centimeters long.
Alongside the offensive weapons was a collection of defensive gear, primarily 131 Celtic-type shields with their associated bosses. The quantity of weapons suggests a force of 80 to 100 warriors, meaning the Hjortspring Boat was likely part of an attacking fleet of four or five similar vessels. Before being deposited in the bog, which was then a lake, many of the weapons were deliberately broken, bent, or otherwise destroyed. This ritual destruction was a common practice for sacrifices in Iron Age Europe. Beneath the boat, archaeologists also found the dismembered remains of a horse, a lamb, a calf, and two dogs, completing the offering to the victorious islanders' gods.