jen4011 jen4011
  • 24-09-2018
  • History
contestada

Beside steel, what was the other breakthrough that allowed buildings to grow so tall?

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mcgonagilln
mcgonagilln mcgonagilln
  • 02-10-2018

Elevators and lack of city space.  Since there was less real estate available on land, they had no other choice but to build upwards.  


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