Change<span> over time occurs for many reasons, but three phenomena that tend to cause it are: ... in the Arabian Peninsula in the 7th century
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Comprises two institutions: the International Bank for Reconstruction and Development (IBRD), and the International Development Association (IDA). The World Bank is a component of the World Bank Group, which is part of the United Nations system. The World Bank's stated official goal is the reduction of poverty.
Barbarian incursion
Ostrogoths
Visigoths
Franks
Rebels
Gepids
Huns
etc....
Article 6, clause 2 of United States Confederation.