Excerpts from Books and Wikipedia
"Controversy over the heliocentric universe would wait until the work of Kepler and Galileo seventy years later." [Furtado: 1001 Days] "In 1543, the Polish mathematician Nicolaus Copernicus (1473-1543) published On the Revolution of the Heavenly Bodies. It was based not on Copernicus's own observations of the heavens so much as on those of Greek and Arab astronomers. Nonetheless, he was able to demonstrate that these much older observations were more readily explained by the Earth orbiting the Sun rather than the other way around. It took others, notable the Danish astronomer Tycho Brahe in the 1570s, to show by direct observation that Copernicus was right." [DK Timelines, p. 186-7] 1543: "The publication of Copernicus's De Revolutionibus, which proposes a sun-centered universe. The work includes two key Arab contributions." [Lyons: House of Wisdom, p. xiv]