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Why Were Bridges Invented?

Answer

Bridges provide structures for crossing barriers like rivers, lakes. They were designed to carry railroad cars, vehicles and pedestrians.
Q&A Related to "Why Were Bridges Invented?"
For over 8,000 years ago they have been in use in some form.
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The first suspension bridges are believed to have been constructed in Latin America around the 7th century, so nobody knows who truly invented the first suspension bridge.
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The invention of refrigerators is actually a process that is spread out over at least a century. William Cullen was the first to create an artificial cooling medium. That was 1748
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