It would be the preservation and the dominance of Christianity in the region. Also it paved way to a creation of a powerful Catholic nations that will play a significant role in the history especially in the Age of Exploration and Colonization. Also it saved face of Christianity after the fall of Constantinople into Muslim hands.
The main reason why the US Senate is often called “the greatest deliberative body in the world" is because it allows each state to have an equal say in legislation regardless of the state's size, which is a powerful function.
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The 13th amendment finally abolished slavery
China was influenced by foreigners politically, socially, and economically during the Ming Dynasty. Missionaries come into China bringing both Christianity and technology. China struggled foreigners influence by kicking out the Mongols. Also, China began to detach itself and limited the foreigners’ trading posts.
