| A | B |
|---|
| revolution in communication/transportationsp | caused spread of modern values |
| caused cultural conflicts | migration,world wars,economy |
| new technology | improved standard of living |
| In 1905 <20% of USA had | electricity, range, car, phone |
| electricity, range, car, phone | In 1955 >70% of USA had |
| New tech for middle class in 1950s | air conditioning, washer/dryer |
| Roosevelt's radio speeches to US | Fireside Chats |
| Birth of a Nation | 1915 |
| Intolerance | 1916 |
| Metropolis | 1927 |
