Editing 1412 (section)

=== Date unknown ===
* The first mention is made of [[Wallachia]]n knights competing in a [[jousting]] tournament, in [[Buda]].
* [[John II of Castile]] declares the [[Valladolid]] laws, that restrict the social rights of [[Jew]]s. Among many other restrictions, the laws force Jews to wear distinctive clothes, and deny them administrative positions.
* Years after its publication in the 14th century, the [[Ming Dynasty]] Chinese artillery officer [[Jiao Yu]] adds the preface to his classic book on [[gunpowder warfare]], the ''[[Huolongjing]]''.
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* The [[Black Death]] sweeps [[Kingdom of England|England]] for a final time, in a 60-year period.