Note 2 — Group I. THREE RIVAL CIVILIZATIONS.

Gulf Coast of Florida is laid down with tolerable accuracy on a map of 1513 (Ptolemy, Venice). Garay examined it in 1518. By 1530 (Ptolemy, Basle) the Gulf Coast had obtained quite accurate delineation. The Gulf, itself, being the highway for ships bound to Mexico and Yucatan, was well known to Spanish sailors. Erelong it became an exclusively Spanish sea on which no other flag was allowed.