Discrimination is the prejudicial treatment of an individual based on their membership in a certain group or category. It involves the actual behaviors towards groups such as excluding or restricting members of one group from opportunities that are available to another group. The term began to be used as an expression of derogatory racial prejudice in the 1830s from Thomas D. Rice
Thomas D. Rice
Thomas Dartmouth Rice was a white performer and playwright who used African American vernacular speech, song, and dance to become one of the most popular minstrel show entertainers of his time.-Background:...

's performances as "Jim Crow".

Since the American Civil War
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

 the term 'discrimination' generally evolved in American English
American English
American English is a set of dialects of the English language used mostly in the United States. Approximately two-thirds of the world's native speakers of English live in the United States....

 usage as an understanding of prejudicial
Prejudice is making a judgment or assumption about someone or something before having enough knowledge to be able to do so with guaranteed accuracy, or "judging a book by its cover"...

 treatment of an individual based solely on their race, later generalized as membership in a certain socially undesirable group or social category.

Discriminatory laws such as redlining
Redlining is the practice of denying, or increasing the cost of services such as banking, insurance, access to jobs, access to health care, or even supermarkets to residents in certain, often racially determined, areas. The term "redlining" was coined in the late 1960s by John McKnight, a...

 exist in many countries.