The synonym for a villa is a manor, a chateau, or a mansion.
Steel: 4. provided a tough, efficient building material for industrial purposes
Eli Whitney: 2. developed system of interchangeable parts; increased population
Assembly Line: 3. made putting together of goods piece by piece; increased production greatly
Steam Power: 1. enabled building of factory away from rivers; powered machines
Bad they didn't like them
4 the introduction of sound
