One of the best things about Europa Universalis 4 is how it aims to replicate actual historical events, despite its "alternate history" style of gameplay. It does this by either triggering in-game events or letting nations make "decisions" that match up with actual history.
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One of these is the Iberian Wedding. Also known as the Iberian Union, this was the historic dynastic union between the kingdoms of Spain and Aragon which saw the entire Iberian
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