The PPC (or PPF, same thing) shows economic growth because it outlines exactly what the economy can produce at that moment. When it shifts outward in any way (be it towards consumer and capital goods, or X and Y), that MUST be because of economic growth.
Answer:
Believing that God had chosen him as his messenger Muhammad began to preach what God had revealed to him. The simple and clear-cut message of Islam, that there is no God but Allah, and that life should be lived in complete submission to the will of Allah, was attractive to many people, and they flocked to hear it.
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All able Muslims must make a pilgrimage (hajj) to Mecca at least once in their lifetimes.
The electoral college was formed for the people to vote, so I would say that it is a form of indirect democracy, because the people make the decision by voting but they do not make their decision directly.
During the Civil War the northerners fought because they were against slavery, the southerners fought because the slaves did the work for them.
The achievements were that it managed to raise its own army and create its own currency and government. The failures were that it didn't manage to become internationally recognized, and they eventually became bankrupt. Another thing was that there was a lot of internal strife and division.
