The Dutch gave up Manhattan for a tiny island you've probably never heard of

The 1667 Treaty of Breda let each side keep what it already held: England kept the Dutch colony of New Amsterdam (Manhattan), and the Dutch kept Run, a sliver of an island in Indonesia that was, at the time, the world's only source of nutmeg. Run's monopoly made it the pricier catch — until nutmeg trees were smuggled out and planted elsewhere.

— Wikipedia contributors, Treaty of Breda (1667)