<P> The lands to the east would belong to Portugal and the lands to the west to Castile . The treaty was signed by Spain, 2 July 1494 and by Portugal, 5 September 1494 . The other side of the world was divided a few decades later by the Treaty of Zaragoza, signed on 22 April 1529, which specified the antimeridian to the line of demarcation specified in the Treaty of Tordesillas . Originals of both treaties are kept at the Archivo General de Indias in Spain and at the Arquivo Nacional da Torre do Tombo in Portugal . </P> <P> This treaty would be observed fairly well by Spain and Portugal, despite considerable ignorance as to the geography of the New World; however, it omitted all of the other European powers . Those countries generally ignored the treaty, particularly those that became Protestant after the Protestant Reformation . </P> <P> The treaty was included by UNESCO in 2007 in its Memory of the World Programme . </P> <P> The Treaty of Tordesillas was intended to solve the dispute that had been created following the return of Christopher Columbus and his crew, who had sailed for the Crown of Castile . On his way back to Spain he first reached Lisbon, in Portugal . There he asked for another meeting with King John II to show him the newly discovered lands . </P>

As a result of the treaty of tordesillas