# 1911 Encyclopædia Britannica/Marinus of Tyre

**MARINUS OF TYRE,** geographer and mathematician, the
founder of mathematical geography, flourished in the 2nd century
A.D. He lived before Ptolemy, who acknowledges his great
obligations to him. His chief merits were that he assigned to
each place its proper latitude and longitude, and introduced
improvements in the construction of his maps. He also carefully
studied the works of his predecessors and the diaries of
travellers. His geographical treatise is lost.

See A. Forbiger, *Handbuch der alten Geographie*, vol. i. (1842); E. H.
Bunbury, *Hist. of Ancient Geography* (1879), ii. p. 519; and especially
E. H. Berger, *Geschichte der wissenschaftlichen Erdkunde der Griechen*
(1903).