How did the crusades lead to the decline of feudalism?

While fighting holy wars against the Turkish Muslims, the crusaders learnt the use of guns and gunpowder.

Explanation:

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The crusaders learned the use of guns and gunpowder.

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.

the safahids used force when persuasion to convert from being a sunni muslim to embrace shi'ism was not effective. they also persecute shi'ites who have different views from their imposed teachings.