The hardship that they faced was death cancer
You can have it upside down, or not be able to tell the directions on it.
I haven't ever done that but I think it might be for Machine made I think it would be Harvesters and for Hand made I think it would be the first airplane I'm not sure what the first airplane is call tbh.
Sorry if I'm wrong... :(
People moved West because the government offered new settlers a lot of land for farming at a very low cost
It was primarily the development of agriculture that led to the development of the first city states, since this allowed for there to be a surplus of food, which allowed people to have labor specialization.