As I recall it was rolled-steel girders riveted together, probably from shipbuilding, together with steam-powered winches and an abundance of cheap steel. As opposed to European cathedrals erected with animal-powered winches and with more expensive forged iron bracing (one of the big cathedrals has a kind or iron corset to keep the walls from bursting outwards).
Profit can be best defined as gain.
Contributed their political ideals, theater, philosophy, art and architecture to the world. <span>Suggested everything was made of atoms
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