Linked from

The 65 pages that link to Treaty of Tordesillas, each with the reason it gives.

• Spanish colonization of the AmericasRelated: It framed Spain’s claims to American lands against Portuguese expansion.

• Portuguese EmpireRelated: The treaty shaped Portugal’s claims in the Atlantic, including the territory that became Brazil.

• Spanish EmpireRelated: It framed Spanish and Portuguese claims to expansion beyond Europe.

• Age of DiscoveryRelated: It shows European monarchies asserting authority over lands and peoples they had not encountered.

• French colonization of the AmericasCompared with: French expansion challenged an Iberian partition that excluded other European powers.

• LongitudeBroader topic: Its disputed demarcation showed the political stakes of locating longitude at sea.

• Spanish conquest of the Inca EmpireRelated: Its imperial framework helps explain Spain’s claims to conquest and rule in South America.

• Portuguese colonization of the AmericasRelated: Its line provided Portugal’s initial diplomatic claim to part of South America.

• European colonization of the AmericasRelated: The treaty shaped competing Iberian claims to territories in the Americas.

• Ferdinand II of AragonRelated: Ferdinand negotiated for the Spanish monarchs after Columbus’s first voyage.

• BrazilRelated: Its boundary helped establish Portugal’s initial claim to part of present-day Brazil.

• Ferdinand MagellanRelated: Its contested division of the globe shaped Spain’s interest in reaching Asian spices from the west.

• European colonialismRelated: The treaty formalized Iberian competition over overseas territories under papal sanction.

• Portuguese colonization of BrazilRelated: Its boundary helped define Portugal’s claim to lands later called Brazil.

• Portuguese India ArmadasRelated: Its imperial context helps explain Portugal’s pursuit of an independent oceanic route to Asia.

• Francisco PizarroRelated: Its allocation of much of South America to Spain framed the imperial claims behind Pizarro’s campaign.

• Crown of CastileRelated: It formalized the overseas sphere claimed by the Castilian monarchy.

• Portuguese discoveriesRelated: It formalized competing Iberian claims emerging from Atlantic exploration.

• Kingdom of PortugalRelated: It formalized a royal contest over overseas expansion.

• Manila galleonRelated: The treaty framed early Iberian claims that shaped Spain’s westward imperial expansion.

• Doctrine of discoveryBroader topic: Its partition of territories ignored the sovereignty of their Indigenous inhabitants.

• Iberian PeninsulaRelated: The agreement reflected the peninsula’s two maritime kingdoms competing for overseas power.

• Manuel I of PortugalRelated: The treaty shaped the Atlantic claims Manuel inherited, including Portugal’s claim to Brazil.

• CircumnavigationRelated: Its division sharpened Iberian competition for routes that could reach Asia by sea.

• House of AvizRelated: The treaty formalized competing expansion claims during the reign of John II.

• New WorldRelated: It shows how European powers treated newly encountered Atlantic lands as objects of imperial division.

• Pope Alexander VIBroader topic: Alexander’s 1493 bulls helped establish the papal framework behind this division.

• Habsburg SpainRelated: It shaped the overseas expansion Charles inherited from the preceding Castilian monarchy.

• Pedro Álvares CabralRelated: Its division helped Portugal claim the territory Cabral reached in Brazil.

• Juan Ponce de LeónRelated: Its division of overseas claims framed Spain’s expansion into the Caribbean.

• Portuguese Estado da ÍndiaRelated: Its claims framed Portugal’s ambitions overseas, though Asian power rested on force and negotiation.

• Spanish treasure fleetRelated: It shaped the imperial claims that preceded Spain’s Atlantic colonial trade.

• European exploration of the PacificRelated: Its competing claims shaped Iberian ideas of authority in the Pacific.

• Joanna of CastileRelated: It shaped the overseas claims that passed with Castile to Joanna and her heirs.

• Spanish FloridaRelated: Its partition shaped Spain’s claims to American territory before Florida’s colonization.

• Battle of MactanRelated: Its division of claims framed Spanish ambitions behind the expedition.

• FrontierBroader topic: It shows how distant powers could define imperial claims without controlling the intervening frontier.

• John II of PortugalRelated: John II negotiated the treaty to protect Portugal’s Atlantic and African interests.

• Treaty of AlcáçovasRelated: It revised the Atlantic division after Columbus’s voyages made competing claims urgent.

• Treaty of Madrid (1750)Compared with: Madrid replaced the meridian-based division with boundaries drawn around actual settlement and occupation.

• Treaty of ZaragozaRelated: Zaragoza extended Tordesillas’s division of overseas claims to the opposite side of the globe.

• Francisco de AlmeidaRelated: The treaty formed part of the diplomatic setting for Portugal’s overseas expansion.

• Magellan expeditionRelated: Its division of overseas claims shaped Spain’s search for a westward route to the Moluccas.

• BandeirantesCompared with: Bandeirante expansion crossed the boundary and challenged its practical force.

• Juan Sebastián ElcanoRelated: The expedition’s route raised questions about the treaty’s division of the Spice Islands.

• War of the Castilian SuccessionRelated: The Treaty of Alcáçovas’s Atlantic provisions helped set the diplomatic background for this later division.

• ConquistadorRelated: The treaty framed Spain’s imperial claims in the Americas, where conquistadors pursued them.

• English colonization of North AmericaCompared with: England’s later claims challenged an overseas division made without English participation.

• Treaty of London (1824)Compared with: Both agreements divided overseas claims between European powers, but the 1824 treaty addressed a distinct region and rivalry.

• Martin WaldseemüllerRelated: The map's Atlantic geography took shape amid competing Iberian claims.