📜 This Day in History
April 17
1080Canute IV became King of Denmark upon the death of his brother Harald III.- 1797French Revolutionary Wars: British forces commanded by Lieutenant-General Ralph Abercromby invaded the Spanish colonial port of San Juan, Puerto Rico.
- 1942World War II: Captured French general Henri Giraud escaped from German captivity in the Königstein Castle.
- 1973George Lucas began writing a 13-page film treatment that later formed the basis of Star Wars.
- 1986The Netherlands and the Isles of Scilly declared peace, having hypothetically been at war for 335 years without a single shot being fired and no casualties incurred.
- 2014NASA announced the discovery of Kepler-186f, the first exoplanet with a radius similar to Earth's discovered in the habitable zone of another star.
