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Contents

Brief History

• Bridges were simple structures that were built from natural resources because they were easily accessible.
• These natural resources include; wood, stone, and dirt.
• The first bridges could only span short distances as the structures were not that strong as they used dirt in place of mortar as it was not invented yet.
• In Ancient Rome it was discovered that grinded out volcanic rocks were good material for making mortar.
• This changed the design of bridges as they were not limited to such low structural integrity and much sturdier, powerful and larger bridges began to be constructed after this discovery.

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