Maintaining a police force is one of the ways in which state governments provide public safety. The presence of an effective police force is essential in order to enforce the law, provide citizens with different kinds of assistance and prosecuting individuals acting against the society.
<span>Nationalism helped lead to WWI because it caused conflict
because nationalism is the feeling that one nationality is better than the other</span>
West Florida Controversy, in U.S. history, dispute over the status of the territory lying on the Gulf of Mexico between the Apalachicola and Mississippi rivers. ... In the Transcontinental (Adams-Onís) Treaty of 1819, Spain ceded all claim to West Florida, which came under official U.S. jurisdiction two years later.
C. Bantu
Bantu-speaking peoples migrated from Western Africa (in the area of modern Nigeria) throughout southern parts of Africa starting around 1000 BC and continuing to the 1500s (or perhaps a bit later, by some accounts).
There is some debate among historians as to whether iron metallurgy arose independently in Africa or was learned or borrowed from the Middle East or Europe. But whether independently invented or borrowed, the fact remains the the spread of iron working in Africa and the spread of Bantu languages by Bantu migration across Africa were correlated events.