2 mar 1917 año - US enters WW1
Descripción:
 The US changed its industrial production techniques by: 
- Campaigning to emphasize importance of shipyard workers. 
- Reducing construction time by having parts built elsewhere and assembling them at the yard. 
- Taking private/commercial ships and converting them for transatlantic war use. 
Añadido al timeline:
fecha:
2 mar 1917 año
Ahora mismo
 ~ 108 years ago