Westphalia: Church Politics Adjusts Boundaries, Then Everything Changes
In 1648, the Treaty of Westphalia created the modern nation-state.
Constitution and Civil War
The Thirteenth Amendment abolished slavery (and involuntary servitude, except as punishment for a crime). It was passed by the Senate on April 8, 1864, and by the House on January 31, 1865.
When the Europeans decided to edge gradually into united nationhood, step by step, starting with a unified currency, Milton Friedman was immediately scornful. Mr. Friedman had won a Nobel Prize for his work in monetary matters and told the world that he didn't think the Euro would last ten years. At the end of ten years, it began to look as though he was right. Since even pirates had once been willing to accept Spanish gold coins at face value, it takes a little explaining to understand why it makes any difference whether the issuing countries of the Euro are yoked in common nationhood.