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What is the most basic architectural technique for spanning space?
Gunpowder
A mixture of saltpeter, sulfur, and charcoal, used in the past as a propellant in firearms and as an explosive.
Invented
The act of creating, designing, or originating something that has never been made before.
Iberian Peninsula
A region in Southwest Europe, occupied by Spain and Portugal, known for its diverse geography, cultures, and historical significance.
Burgher
A member of the middle class in medieval towns, typically involved in commerce or trade, having certain rights and privileges.
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