Spanish East Indies together with the Spanish West Indies, were administered through the Viceroyalty of New Spain based in Mexico City. After Mexican independence, they were ruled directly from Madrid. As a result of the Spanish–American War in 1898, the Philippines and Guam were occupied by the United States while about 6,000 of the remaining smaller islands were sold to Germany in the German–Spanish Treaty of 1899. The few remaining islands were ceded to the United States when the Treaty of Washington was ratified in 1901. Spanish contact began on , when a Spanish expedition led by Ferdinand Magellan reached the Mariana Islands.
Japanese government-issued currency in the Dutch East Indies Japanese government-issued currency in the Dutch East Indies The Netherlands Indies gulden, later the Netherlands Indies roepiah (), was the currency issued by the Japanese occupiers in the Dutch East Indies between 1942 and 1945. It was subdivided into 100 sen and replaced the gulden at par. In December 1941, the Empire of Japan began its assault on British Borneo; by January 1942 its armies had begun to attack those parts of the island which were part of the Dutch East Indies. This was followed by attacks on Sumatra and Java in February. Ultimately, the Dutch colonial government capitulated on