Stolpe died in 1905. His documentation, however imperfect, is what made the 2017 and 2019 research possible. Without the ink labels on the bones, the 2019 paper could not have verified the chain of custody. Without the numbered grave record, no one could have traced the origin of the misplaced femur to a different burial. The irony is that Stolpe’s careful work created the conditions for the revision of his own central assumption about the most famous grave he ever excavated.
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## The Silk and the Dirham: Material Culture as Biography
The objects in grave Bj 581 are not just weapons. They are also, taken together, a record of material connections that extend far beyond the island of Björkö and the early medieval Baltic.
The silk remnants with silver brocade that Stolpe recorded are among the most geographically distant elements of the assemblage. Silk production in the tenth century was centered in China, Persia, and Byzantium. The specific silk described in the assemblage — with silver brocade in a form associated with Caucasus-region material culture — traveled an enormous distance to end up in a grave in Lake Mälaren. Its presence does not prove that the individual in the grave made that journey. Luxury textiles moved through trade networks and changed hands many times. But it does place the grave’s contents within a world of long-distance exchange that was a defining feature of Birka’s economic life.
The silver dirham of Nasr ibn Ahmad is similarly far-traveled. Nasr ibn Ahmad was a Samanid ruler, the Samanid dynasty governing a region that encompassed present-day Iran, Afghanistan, and Central Asia. His reign ran from 914 to 943. The coin reached Birka through the network of Islamic silver that flowed northwest through Russia’s river systems, exchanged for furs, amber, and slaves at markets along the way. Birka was a terminal point for much of this silver in the ninth and tenth centuries; the Islamic world’s need for northern goods, and the north’s appetite for silver, drove one of the largest international monetary flows of the early medieval era.