The Old Swiss Confederacy a "de facto" independent state throughout the early modern period, although still nominally part of the Holy Roman Empire until 1648 when the Treaty of Westphalia ended the Thirty Years' War. The Swiss Reformation divided the confederates into Reformed and Catholic parties, resulting in internal conflict from the 16th to the 18th centuries; as a result, the federal diet () was often paralysed by hostility between the factions. The Swiss Confederacy fell to invasion by the French Revolutionary Army in 1798, after which it became the short-lived Helvetic Republic. The adjective "old" was introduced after the Napoleonic era with ,
History of Europe and Spanish trade routes into the Pacific Ocean, reaching Australia in 1606 and New Zealand in 1642. With the development of the printing press, new ideas spread throughout Europe and challenged traditional doctrines in science and theology. Simultaneously, the Protestant Reformation under German Martin Luther questioned Papal authority. The most common dating of the Reformation begins in 1517, when Luther published "The Ninety-Five Theses", and concludes in 1648 with the Treaty of Westphalia that ended years of European religious wars. During this period corruption in the Catholic Church led to a sharp backlash in the Protestant Reformation. It gained many