The silver real (Spanish: real de plata) was the currency of the Spanish colonies in America and the Philippines. In the seventeenth century the silver real was established at two billon reals (reales de vellón) or sixty-eight maravedís. Gold escudos (worth 16 reales) were also issued. The coins circulated throughout Spain's colonies and beyond, with the eight-real piece, known in English as the Spanish dollar, becoming an international standard and spawning, among other currencies, the United States dollar. A reform in 1737 set the silver real at two and half billon reals (reales de vellón) or eighty-five maravedís. This coin, called the real de plata fuerte, became the new standard, issued as coins until the early 19th century. The gold escudo was worth 16 reales de plata fuerte.