The answer is resolution.
<span>The "Yi Dynasty' was one of the longest lasting. They followed some Chinese factor is maintained their distinctive identity. Terrines developed their own ounce of it called "Hamgul." China and Japan created internal conflicts with Korea. Curry and then became isolated to limit European contact and keep from the outside.</span>
The Berlin Airlift was one of the defining events of the Cold War. American and British cargo planes delivered over 2.3 million tons of supplies to the citizens of Berlin during a Soviet blockade of the city from June 1948 to May 1949.
The main cause is poverty and lack of education. They're very poor, so they can't afford school. If the children do go to school, they drop out very young to work and help earn money for the family. That's not the kind of cycle people can break out of easily.
Add to that the civil war from 1960 to 1996 where the military persecuted the native people, killing up to 200,000, and they've had a pretty rough time of it.