Transition-sentences bring out the logical relation between ideas. You want your paper to read like a continuous argument which good transitions help to facilitate. Words like however, so, additionally do indicate a logical relation between paragraphs, but they are weak. A strong transition makes the relation explicit.
segregation. n. 1. the act of segregating or state of being segregated. 2. (Sociology) sociol the practice or policy of creating separate facilities within the same society for the use of a minority group. 3. (Genetics) genetics the separation at meiosis of the two members of any pair of alleles into separate gametes.
Proper noun. A specific period in United States history during which laws requiring racial segregation were struck down and the practice was deterred, beginning in the United States military during World War II and occurring in society in general from the mid-1950s. desegregation - Legal Definition.