What do rivers often define?

A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. ... Sometimes a river is defined as being larger than a creek, but not always: the language is vague.

unless they converted, many non-christians (mainly jews and muslims) were persecuted

the values of the selma marchers was to bring   their ability to vote into law. mlk was not hat march, which was protesting toward lbj