Denmark

1. 8th–11th Century: Viking expansion, unification under Harald Bluetooth, and Christianization of the Scandinavian realm.
2. 1397: Establishes the Kalmar Union, bringing Denmark, Norway, and Sweden under a single crown.
3. 17th–19th Century: Successive territorial losses to Sweden and Prussia reshape Denmark into a compact nation-state.
4. 1849: Adoption of the June Constitution peacefully transitions the country from absolute monarchy to constitutional monarchy.
5. Mid-20th Century: German occupation in WWII followed by the rapid development of the universal Nordic welfare state model.
6. 21st Century: Global leader in wind energy, high-tech industry, and social development.

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