Andrés de Urdaneta and the tornaviaje

The Augustinian friar and cosmographer who in 1565 sailed the San Pedro from Cebú to Acapulco by standing north into the westerlies and running east on the Kuroshio — the return passage, the tornaviaje, that turned a one-way crossing of the Pacific into a route and made the Manila-Acapulco galleon possible.