The Occultation of a Star by the Moon

Nicolaus Copernicus (Mikolaj Kopernik), a Polish Astronomer, recorded in 1497, Continue reading

Offa – King of Mercia

Offa was King of Mercia, a kingdom of Anglo-Saxon England, from 757 until his death in July 796. Continue reading

Nicolaus Copernicus

Nicolaus Copernicus (/koʊˈpɜːrnɪkəs, kə-/; Polish: Mikołaj Kopernik; German: Nikolaus Kopernikus; Niklas Koppernigk; 19 February 1473 – 24 May 1543) was a Renaissance- and Reformation-era mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe, likely independently of Aristarchus of Samos, who had formulated such a model some eighteen centuries earlier. Continue reading