Geocentric model coelestium" ("On the Revolutions of the Heavenly Spheres"), which posited that the Earth and the other planets instead revolved around the Sun. The geocentric system was still held for many years afterwards, as at the time the Copernican system did not offer better predictions than the geocentric system, and it posed problems for both natural philosophy and scripture. The Copernican system was no more accurate than Ptolemy's system, because it still used circular orbits. This was not altered until Johannes Kepler postulated that they were elliptical (Kepler's first law of planetary motion). With the invention of the telescope in 1609,
Unconverted long-term prisoners in North Korea, and Revised Romanisation for places now in South Korea. Unconverted long-term prisoners Unconverted long-term prisoners is the North Korean term for northern loyalists imprisoned in South Korea who never renounced "Juche". The North Korean government considers them to be "pro-reunification patriotic fighters", while South Korean scholars have described them as "pro-communist spies". In March 1998, South Korean president Kim Dae-jung declared an amnesty for long-term prisoners over the age of 70, as well as some suffering from disease. In February 1999, President Kim declared another amnesty for 17 unconverted long-term prisoners. In 2000, as part of the