Archaeologists lifted thousands of coins from the two caches, along with a bracelet, a clasp and a single bead. The metal came out of the earth uncleaned and unsorted, and at the time of reporting nobody had yet counted it. What the specialists could say is when it was made: the coins and jewellery belong to the decades between A.D. 1000 and 1050. When someone chose to put them under those stones, and why they never came back, remains unknown.
Sysmä sits on the eastern shore of Lake Päijänne, a parish of some 3,500 people today. The lake was never a backwater. Through the Kymijoki river system it links inland Häme to the Gulf of Finland, and that water was the road along which Baltic silver travelled up-country. A thousand years ago, whoever buried this wealth was sitting beside a trade artery, not at the end of the world.
The composition of such hoards tells its own story of shifting empires. Earlier Baltic caches are thick with Islamic dirhams struck at Samarkand and Bukhara. As Central Asian silver output fell away in the late 900s, German pennies from Saxony and Cologne moved in, together with English coins of Æthelred II and of Cnut — much of the English silver having crossed the sea as Danegeld, tribute paid to keep raiders at bay.
Silver then was reckoned by weight, not by face value. That is why hoards routinely hold coins snipped into halves and quarters, and why a bracelet, a clasp and a fistful of foreign pennies can lie together as a single sum of money. Traders carried folding balance scales in small cases, because every payment was weighed on the spot.
The find now passes to the Finnish Heritage Agency in Helsinki, which under the Antiquities Act of 1963 receives, redeems and conserves material like this; the Lahti Historical Museum covers archaeology in the Päijät-Häme region. Finland's previous largest silver hoard, a five-pound cache from near the southern coast, had held its record since 1895. It took an amateur with a detector, a patch of forest and a phone call to unseat it.