Made books cheaper, spread knowledge, fueled the scientific revolution and the Reformation, and reduced the power of the Catholic Church
O Gutenberg's press
O Looms

I think it's Gutenberg's press.

Hope it helped.

to protect the united states' role as a world leader, president truman wanted to prevent the soviet union from spreading communism beyond its post-world war ii boundaries. he declared that the united states must assist any nations struggling to prevent a communist takeover.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

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