December 27: historical facts and curiosities

On this day in 1571, Johannes Kepler, a German astronomer and mathematician, was born. He is best known for his three laws of planetary motion, which described how planets orbit the Sun. These empirical laws provided a crucial foundation for Isaac Newton's theory of universal gravitation, fundamentally changing our understanding of the cosmos and the mechanics of the solar system. Kepler's work marked a pivotal moment in the scientific revolution.

On December 27, 1831, British naturalist Charles Darwin, aged 22, embarked on a five-year scientific expedition aboard HMS Beagle. Departing from Plymouth, England, the journey around the world, particularly his observations in the Galápagos Islands, was pivotal for the development of his theory of evolution by natural selection. This historic voyage revolutionized biology and our understanding of life on Earth.