Kepler's laws of planetary motion law" is what became the Second Law in the set of three; but Kepler did himself not privilege it in that way. Johannes Kepler published his first two laws about planetary motion in 1609, having found them by analyzing the astronomical observations of Tycho Brahe. Kepler's third law was published in 1619. Kepler had believed in the Copernican model of the solar system, which called for circular orbits, but he could not reconcile Brahe's highly precise observations with a circular fit to Mars' orbit—Mars coincidentally having the highest eccentricity of all planets except Mercury. His first law reflected this discovery.
Siege of Rheinberg (1601) Siege of Rheinberg (1601) The Siege of Rheinberg also known as the Rhine campaign of 1601 was the siege of the towns of Rheinberg (Old Dutch: Rijnberk) and Meurs from 12 June to 2 August 1601 during the Eighty Years' War and the Anglo–Spanish War. Maurice of Orange with an Anglo-Dutch army besieged the Spanish held cities in part to distract them before their impending siege at Ostend. Rheinberg, an important city, eventually capitulated on 28 July after a Spanish relief force under Herman van den Bergh failed to relieve the city. The towns of Meurs surrendered soon after. In