Introduction

From 1565 to 1815, some of the largest ships of the era cruised the oceans between the Philippine capital of Manila and Acapulco, Mexico. These ships - dubbed the Manila galleons - traveled between the two cities once a year, bringing silks, porcelain, jewelry and other luxury goods east to Mexico, and then returning west to the Philippines with gold and silver, soldiers, missionaries and other passengers.

Captains of these galleons kept detailed logs of the ships' journeys, recording information on wind, ocean currents and weather. Although most of these logs have disappeared, some information is still available with details on when the ships departed and arrived at each port.