A Pacific link between two empires
From 1565 until 1815, Spanish ships sailed across the Pacific between the Philippines and New Spain, as Mexico was then known. The route is usually called the Manila galleon trade, or the Acapulco galleon trade after its eastern terminus. It was one of the longest regular sea services of its era, and it connected the Spanish possessions in Asia and the Americas, with Chinese merchants as the essential suppliers of its cargo.
The ships themselves are often described as galleons, and the type is covered more generally under treasure fleet galleons. In practice, the vessels on the Pacific route were large, heavy-hulled sailing ships, built to carry cargo as much as to fight, and they varied greatly over time.
Finding the way back
Reaching Asia from Mexico was relatively simple: an expedition led by Miguel López de Legazpi crossed from the Mexican coast in the 1560s and settled in the Philippines, founding Manila in 1571. The challenge was the return voyage. Sailing east at low latitudes meant fighting the same winds that carried ships west, so earlier expeditions had failed to get back.
The solution came in 1565, when the navigator and Augustinian friar Andrés de Urdaneta, sailing on the ship San Pedro, steered north to high latitudes before turning east. He used the westerly winds and the north Pacific currents to reach the North American coast near California, then followed the coast south to Mexico. This tornaviaje, or return voyage, became the standard path for the next 250 years and made a regular service possible.
The route and the voyage
Outward from Acapulco, ships typically sailed west at about the latitude of Guam, following the trade winds, and stopped at the Marianas before reaching the Philippines. The trip often took a few months. The return was far worse: ships left Manila in summer, headed north and then east across the Pacific, and often took four to six months or more to reach the American coast. Passengers and crews faced storms, foul water and food shortages, and illness was common, notably scurvy at sea, which could cripple a crew before landfall.
In an arrangement typical of Spanish colonial commerce, ships ran under a royal licence, often with only one or two sailing from Manila in a given year. Their departure and arrival were major events, and the cargo was handled by merchants in Manila and Mexico who bought space in the hold.
Ships and construction
Many of the galleons were built in the Philippines, using local hardwoods, and in shipyards at places such as Cavite near Manila and other yards in the islands. Local timber was valued for durability, and Filipino and Chinese workers formed a large share of the labour force. Some vessels were very large for their time, among the biggest wooden ships built anywhere in that period, though precise tonnages are debated and claims should be treated with care. Because they carried heavy cargo over very long distances, they were often overloaded, which contributed to losses.
The crews were mixed, including Spanish officers and a significant number of Filipino, Mexican and other sailors. Navigation relied on early forms of the navigation instruments of the day, with limited ability to fix longitude, a problem addressed centuries later by the marine chronometer.
Cargoes: silk, silver and more
The trade was based on the exchange of Chinese goods for American silver. Chinese junks, which had long operated across the South China Sea, brought silk, porcelain, lacquerware, spices and other items to Manila, where Spanish merchants bought them; the Chinese junk fleets and the broader South China Sea routes provide the background here. The galleons took the cargo across the Pacific to Acapulco, where it was sold at a fair and distributed within New Spain and sometimes onward to Spain and the wider Americas. In the opposite direction, silver coins minted from Mexican and Andean silver flowed to Asia, helping to supply a large Chinese demand for the metal.
Other goods also moved in both directions, including plants, foods, and people. Crops from the Americas, such as maize and sweet potatoes, are among the items that eventually spread in Asia through these networks, though historians debate how much came by this particular route as opposed to others. This exchange is sometimes described as an early example of global trade.
Risks and losses
The galleons were prime targets for rival powers. In 1587 the English privateer Thomas Cavendish captured the Santa Ana off the coast of Baja California, and in 1743 the British commodore George Anson captured the Nuestra Señora de Covadonga near the Philippines after a long voyage that had begun as an attack on Spanish possessions. More frequently, though, ships were lost to weather, reefs and rough seas: a number of wrecks occurred on the long passage or near the Marianas and the Californian coast. Spanish officials responded by regulating the size and number of ships, and by establishing fixed schedules.
The end of the service
Several changes undermined the service in the late eighteenth century, including the opening of other trade routes, competition from other European powers and the political turmoil in Spain and its colonies. Mexican independence efforts, beginning in 1810, disrupted the route, and the last sailing from Acapulco took place in 1815. After that, trade across the Pacific followed other patterns, and later sailing and steam services took over.
The galleon route is often seen as an early link in a global economy, though it was small by modern standards. Its significance lies in how it joined hemispheres under one imperial system, contrasting with the older Polynesian voyaging traditions and the later voyages described in Cook Pacific voyages. Understanding it requires attention to the people on both sides, from Chinese merchants to Filipino shipbuilders and sailors.