What was one reason why Martin Luther's ideas to reform the church gain popularity?

Luther's belief in justification by faith led him to question the Catholic Church's practices of self-indulgence. He objected not only to the church's greed but to the very idea of indulgences. Over the next few years, however, his Ninety-Five Theses sparked a religious movement to reform the Catholic Church.

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"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

the growing interconnectedness of the world through communication, trade, and the exchange of ideas is an important theme in the history of the 20th and 21st centuries.

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