In the second half of the 1800s, which development led to the other three?

just think study that what i do because i believe i can do now if its a hard question you can ask but if its easy and if you just dont feel like doing its not get you to the next grade

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.