The treaty of tordesillas established a territorial dividing line between
spain and india.
spain and portugal.
africa and portugal.
africa and india.

Spain and Portugal

The Treaty of Tordesillas (1494) was an agreement that divided the colonies of the Portuguese Empire and the Crown of Castile. The line of demarcation was along a meridian 370 leagues west of the Cape Verde islands. Although the treaty was respected by Spain and Portugal, it did not take other European powers into account. Therefore, it was generally ignored by other powers.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

sense of self-interest