De revolutionibus orbium coelestium has 405 pages.
The Catholic Church banned Copernicus' book "On the Revolutions of the Celestial Spheres" because it presented a heliocentric view of the universe contradicting the geocentric view held by the Church at the time. This new perspective challenged the Church's teachings and authority on matters related to science and cosmology.
Nicolaus Copernicus proposed the idea that the Earth revolved around the Sun in his book "De revolutionibus orbium coelestium" published in 1543. This heliocentric model of the solar system challenged the prevailing geocentric view of the time.
Copernicus wrote one major book called "De revolutionibus orbium coelestium" (On the Revolutions of the Celestial Spheres), which was published in 1543. This work outlined his heliocentric theory that the Earth and other planets revolve around the Sun.
There is no exact date that can be known, some like to mark its beginning with the birth, in 1473, of Nicolaus Copernicus, or with the publication of his work, in 1543, De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres), declaring a solar system with the Sun at its center. Most will agree that it was a force in science by the end of the 18th century and many would argue that it is still going on. This revolution was driven, not by one, but by many, new ideas. This is why it is impossible to date. However, somewhere between Copernicus' birth and his revolutionary paper, it must had to have started.
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2500 pages are approximately 2,500 pages.
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