Who invented the system of latitudes and longitudes in 2nd century a.d?
The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene, who composed his now-lost "Geography" at the Library of Alexandria in the 3rd century BC. A century later, Hipparchus of Nicaea improved on this system by determining latitude from stellar measurements rather than solar altitude and determining longitude by timings of lunar eclipses, rather than dead reckoning. In the 1st or 2nd century, Marinus of Tyre compiled an extensive gazetteer and mathematically-plotted world map using coordinates measured east from a prime meridian at the westernmost known land, designated the Fortunate Isles, off the coast of western Africa around the Canary or Cape Verde Islands, and measured north or south of the island of Rhodes off Asia Minor. Ptolemy credited him with the full adoption of longitude and latitude, rather than measuring latitude in terms of the length of the midsummer day.
Who invented the system of latitudes and longitudes, measuring latitudes using the island of Rhodes in 2nd century a.d?
Marinus Marinus of Tyre
Geographic coordinate system
The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene, who composed his now-lost "Geography" at the Library of Alexandria in the 3rd century BC. A century later, Hipparchus of Nicaea improved on this system by determining latitude from stellar measurements rather than solar altitude and determining longitude by timings of lunar eclipses, rather than dead reckoning. In the 1st or 2nd century, Marinus of Tyre compiled an extensive gazetteer and mathematically-plotted world map using coordinates measured east from a prime meridian at the westernmost known land, designated the Fortunate Isles, off the coast of western Africa around the Canary or Cape Verde Islands, and measured north or south of the island of Rhodes off Asia Minor. Ptolemy credited him with the full adoption of longitude and latitude, rather than measuring latitude in terms of the length of the midsummer day.
Who invented the system of latitudes and longitudes, measuring latitude from the equator in 2nd century a.d?
Claudius Ptolemy Ptolemy
Geographic coordinate system
History of longitude
https://en.wikipedia.org/wiki/History%20of%20longitude
Geographic coordinate system
https://en.wikipedia.org/wiki/Geographic%20coordinate%20system
Ptolemy, in the 2nd century CE, based his mapping system on estimated distances and directions reported by travellers.
History of longitude
Ptolemy's 2nd-century Geography used the same prime meridian but measured latitude from the Equator instead.
Geographic coordinate system
Marinus of Tyre is credited with compiling a system using latitudes and longitudes in the 1st or 2nd century. He plotted a map of the world using coordinates measured east from the prime meridian at the westernmost known land, called the Fortunate Isles, and measured north or south of the island of Rhodes. Also in the 2nd century AD, Ptolemy, who based his mapping system on estimated distances and directions reported by travelers, used the same prime meridian as Marinus but measured latitude from the Equator instead of the island of Rhodes.