What is the significance of Hispanic-Lusitania rivalry in maritime discoveries?

Question

What is the significance of Hispanic-Lusitania rivalry in maritime discoveries?

Answer 1

This rivalry was vigorous in maritime navigation and Cartography. This rivalry was responsible for the dichotomy of (Lusitania) versus the rest of South America speaking Spanish (Hispanic). Both Lusitania (Portugal) & Spain were under one crown. After they split up as 2 countries fuelling this rivalry, both countries claimed the whole of South America as colonial possession. Pope has to intervene to stop any Christian blood from spilling. He drew a N-S (vertical) line on the map of continent, giving the east half to Portugal and west half to Spain. So, Brazil became Portuguese and the rest Spanish.