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 ,
Piracy in the Caribbean problems at home to turn much attention to their New World colonies. The non-Spanish colonies were growing and expanding across the Caribbean, fueled by a great increase in immigration as people fled from the chaos and lack of economic opportunity in Europe. While most of these new immigrants settled into the West Indies' expanding plantation economy, others took to the life of the buccaneer. Meanwhile, the Dutch, at last independent of Spain when the 1648 Treaty of Westphalia ended their own Eighty Years War (1568–1648) with the Habsburgs, made a fortune carrying the European trade goods needed by these new