Poland

On 3 May 1791, the Sejm of the Polish-Lithuanian Commonwealth adopted Europe's first modern constitution. It abolished the parliamentary chaos that had paralysed Poland for over a century, declared that power derives from the will of the people, and established a functioning constitutional monarchy. Russia invaded within a year.

On 14 April 966, Mieszko I, pagan ruler of the Polans, converted to Christianity following his marriage to Doubravka of Bohemia. The baptism created Poland. What followed would be centuries of glory, tragedy, erasure, and resurrection.