The westward route from Mexico passed south of Hawaii, making a short stopover in Guam before heading for Manila. The exact route was kept secret to protect the Spanish trade monopoly against competing powers, and to avoid Dutch and English pirates. Due to this policy of discretion, if the Spanish did find Hawaii during their voyages, they would not have published their findings and the discovery would have remained unknown. From Gaetano's account, the Hawaiian islands were not known to have any valuable resources, so the Spanish would not have made an effort to settle them. This happened in the case of the Marianas and the Carolines, which were not effectively settled until the second half of the 17th century. Spanish archives contain a chart that depicts islands in the latitude of Hawaii but with the longitude ten degrees east of the Islands (reliable methods of determining longitude were not developed until the mid-eighteenth century). In this manuscript, the Island of Maui is named "La Desgraciada" (the unhappy, or unfortunate), and what appears to be the Island of Hawaii is named "La Mesa" (the table). Islands resembling Kahoolawe, Lanai, and Molokai are named "Los Monjes" (the monks).