WORLD HISTORY

Detailed explanation-1: -All lands east of that line (about 46 degrees, 37 minutes west) were claimed by Portugal. All lands west of that line were claimed by Spain.

Detailed explanation-2: -The Treaty of Tordesillas was ratified by the Crown of Castile and the King of Portugal in 1494. The treaty divided the newly discovered lands outside of Europe into two equal halves, the east side belonging to Portugal, and the west to Castile (later to become part of Spain).

Detailed explanation-3: -But John II protested and began negotiations leading to the celebrated Treaty of Tordesillas (June 1494), which gave to Spain all lands west of a line 370 leagues to the west of the Cape Verde Islands.

Detailed explanation-4: -The Treaty of Tordesillas of 7 June 1494 involves agreements between King Ferdinand II of Aragon and Queen Isabella I of Castile and King John II of Portugal establishing a new demarcation line between the two crowns, running from pole to pole, 370 leagues to the west of Cape Verde islands.

Detailed explanation-5: -Line of Demarcation divides the New World between Spain and Portugal-JURIST. On May 4, 1493, Pope Alexander VI promulgated the Line of Demarcation, dividing the New World between Spain and Portugal in response the return of Christopher Columbus from his discovery of the American continents.