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 that the song is about a woman who killed her father, an alcoholic gambler who had beaten his wife. Therefore, the House of the Rising Sun may be a jailhouse, from which one would be the first person to see the sunrise (an idea supported by the lyric mentioning "a ball and chain," though that phrase has been slang for marital relationships for at least as long as the song has been in print). Because women often sang the song, another theory is that the House of the Rising Sun was where prostitutes were detained while being treated for syphilis.