One major pull factor that contributed to the population growth shown in the urban area of northern Illinois and Indiana was "<span>racial discrimination," since many blacks in the South fled to the North in the hopes of living better lives. </span>
Grandfather clauses were designed to prevent poor and illiterate African Americans from voting.
This term was coined in the 19th century when new rules for literacy tests, poll taxes and requirements for voting were established.
Some white people who did not fulfill the requirements were still allowed to vote because their ancestors ( grandfathers ) had the right to vote. This was a way to make voting possible for white Americans, and to make voting almost impossible for black people.
Today, this term applies to a provision in which an old rule continues to apply to some existing situation while a new rule will apply to future cases.
Special words or expressions that are used by a particular profession and are difficult for others to understand are called "jargon," since they are often only understood by people "in the know".
