Gutenburg's printing press made books cheaper and available to a larger variety of people. Before the printing press, books were very hard to make and they took a long time to produce.
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After the fall of Rome wasn't the actual fall of Rome but actually only the western part of rome has fallen I believe the key of keeping their language and history on scriptures and texts, even though we know little about certain topics such as what's Greek fire made of the eastern empires still lived afterwards wtih some valuable reelects, and acient texts remained of the Rome's past events and etc
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When its charter expired in 1836, the Second Bank ended its operations as a national institution. It was reestablished as a commercial bank under the laws of Pennsylvania, where it continued to operate until its failure in 1841.