History of physics to simplify their production. In heliocentric models of the Solar system, the Earth orbits the Sun along with other bodies in Earth's galaxy, a contradiction according to the Greek-Egyptian astronomer Ptolemy (2nd century CE; see above), whose system placed the Earth at the center of the Universe and had been accepted for over 1,400 years. The Greek astronomer Aristarchus of Samos (c.310 – c.230 BCE) had suggested that the Earth revolves around the Sun, but Copernicus' reasoning led to lasting general acceptance of this "revolutionary" idea. Copernicus' book presenting the theory ("De revolutionibus orbium coelestium", "On the Revolutions of the
The House of the Rising Sun Like many classic folk ballads, "The House of the Rising Sun" is of uncertain authorship. Musicologists say that it is based on the tradition of broadside ballads, and thematically it has some resemblance to the 16th-century ballad "The Unfortunate Rake". According to Alan Lomax, "Rising Sun" was used as the name of a bawdy house in two traditional English songs, and it was also a name for English pubs. He further suggested that the melody might be related to a 17th-century folk song, "Lord Barnard and Little Musgrave", also known as "Matty Groves", but a survey by Bertrand Bronson showed