The earliest written account of the city is the 10th-century Laguna Copperplate Inscription which describes a context of an Indianised kingdom maintaining diplomatic relations with the Kingdom of Medang. The city was invaded by Brunei's Sultan Bolkiah and was already Islamized by the 15th century when the Spanish Conquistadors first arrived. Manila eventually became the center of Spanish activity in the Far East and one end of the Manila-Acapulco Galleon trade route linking Latin America and Asia. The city would eventually be given the moniker of the ""Pearl of the Orient"", as a result of its central location in the vital Pacific sea trade routes. Several Chinese insurrections, local revolts, a British Occupation and a Sepoy mutiny also occurred shortly thereafter. Manila also saw the rise of the Philippine Revolution which was followed by the arrival of the Americans who made contributions to the city's urban planning and development only to have most of those improvements lost in the devastation of World War II. Since then the city has been rebuilt.