In 1864, a signed treaty forced Denmark to surrender nearly forty percent of its land
The 1864 Treaty of Vienna fundamentally reshaped Northern Europe when Denmark was forced to cede nearly forty percent of its territory to Prussia and Austria following a lopsided military conflict.
The signing of the Treaty of Vienna on October 30, 1864, marked a devastating turning point for the Danish Empire. After losing the Second Schleswig War, Denmark surrendered the duchies of Schleswig, Holstein, and Lauenburg.
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