In 1903, a single misdirected correspondence between a German engineering firm and the Ottoman treasury — lost for eleven days in a Constantinople post office — caused a cascade of missed meetings, collapsed financing windows, and diplomatic embarrassments that reshaped which European powers controlled which stretch of Mesopotamian desert. The borders drawn to fill that vacuum? Still bleeding today. Last week we talked about a rubber stamp that saved democracy — this week, we're talking about an envelope that helped invent the Middle East.