Hernando de los Ríos Coronel

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Hernando de los Ríos Coronel (1559[1]–1621?[2]) was a mathematician, cosmographer, cartographer, navigator, naval pilot, administrator, soldier, priest, and advocate (Procurator General) at the Spanish court of the inhabitants of the Philippines from 1606 to 1610 and again from 1618 until his death.[3][4]

Having attained the rank of military captain, he accompanied governor Luis Pérez Dasmariñas on his expedition to Luzon and Cambodia and spent time in China in 1597. There he prepared the first map of Luzon, Taiwan (also known as Formosa or Isla Hermosa) and certain areas of the Chinese coast.[5]

De los Ríos Coronel combined his expertise as navigator with those of an experimenter[5][6] which was a common practice at the time. He had received renewed impulse with the founding of the Spanish Royal Academy of Sciences in Madrid. His scientific developments aimed to update instruments and tables for navigation based on astronomical observation, combined with an attempt to determine the geographical longitude at sea.[7]

Two examples where he combined his expertise as a navigator with those of an experimenter, are of the development of a process of enabling the extraction of sweetwater from seawater while at sea, for which he requested a license[5] and testing a new type of sea compass invented by Fonseca.[3]

Also, as a navigator de los Ríos advocated reform of the inequality in treatment of the Asian crewmembers of the transpacific voyages that he sailed on. He recommended providing them with adequate food, clothing and protection against the elements. The harsh working conditions of Asian mariners, coupled with the long and perilous journey, made many of them decide to stay on in the Americas, thus forming part of a wider migration of Asians to the Americas and New Spain.[4]

Some of de los Rios Coronel's first hand accounts saw Asians, particularly Filipinos treated "like dogs", they had no proper clothing for the cold weather and some froze to death, mentioning "each new dawn comes there are three or four dead men".[4]

Collaboration with Dasmariñas during Cambodian-Spanish War

As cosmographer and mapmaker

References

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