Rene Descartes was a key figure in the scientific revolution and had some stuff to do with math so probably him ( don't hold me to that and check other peoples answers)
International Magna Carta, extended the revolution in international law ushered in by the United Nations Charter namely, that how a government treats its own citizens is now a matter of legitimate international concern, and not simply a domestic issue.
<span>Merchants in the middle ages were business people who participated in retail and trade. The term “merchant” comes from the Latin term “mercer” which means trafficking and from the French term “mercies” which means wares. Thus, the medieval merchant was seen as both a trader and trafficker of wares across countries. The middle ages merchant sourced for his products during his travels and would then sell them in markets and shops or at fairs. </span>
Slavery rebellions and other stuff that that involves slavery
<span>The states had no power to interfere with federal institutions. </span>