In the wake of the first crusade which european state was unusual in tolerating jews and encouraging them to settle its territory

Poland

Explanation:

The First Crusade was the first of the several crusades that tried to reclaim the Holy Land, which was initiated by Pope Urban II at the Council of Clermont in 1095. Urban raised a military voyage to aid the then Byzantine Empire, which had only just lost nearly all of Anatolia to the Seljuq Turks.

the polish were unusual in tolerating jews and encouraging them to settle in her territory.

southwest asia

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