Diaspora refers to the scattering or dispersal of people from their original homeland. While migration can be voluntary, the term diaspora often implies a forced or traumatic displacement, leading to the formation of communities that maintain a collective memory and cultural identity separate from their host societies.

De facto segregation refers to separation that happens 'in fact' rather than by law. It often results from social, economic, or historical factors, such as housing patterns or neighborhood demographics, distinguishing it from de jure segregation, which is mandated by explicit government laws or policies.

Herbert Blumer argued that racial prejudice is not merely an individual psychological state but a collective process. He posited that prejudice is formed through the interaction and communication among members of a dominant group, where they define their collective position in relation to a subordinate group, thereby reinforcing social boundaries and group identity.

Historical records indicate that the earliest waves of Arab immigrants, particularly those arriving in the late 19th and early 20th centuries, were predominantly from the Levant region, including modern-day Syria and Lebanon. A significant portion of these early immigrants were Christians. Because these groups often identified with their specific regional or religious affiliations, the answer encompasses these diverse but related origins.

Genocide is defined as the intentional action to destroy a people—usually defined as an ethnic, national, racial, or religious group—in whole or in part. This is the most extreme form of inter-group conflict and is considered a crime under international law. It involves systematic violence, mass killing, and policies designed to eliminate the physical existence of the targeted group, distinguishing it from other forms of discrimination or conflict.

Unlike class-based stratification, which is primarily economic, racial and ethnic stratification often involves distinct cultural or national identities. This unique characteristic allows these groups to potentially seek political autonomy or secession, a dynamic not typically present in purely economic class structures.

The concept of 'nations without states' refers to ethnic groups that possess a distinct cultural or national identity but lack their own sovereign political state. This often leads to complex political dynamics within the larger nation-states where these groups reside.

The Great Migration saw a massive influx of African Americans to Northern cities like Chicago. Sociological analysis of this period highlights that while European immigrant groups often experienced eventual assimilation into the broader white population, systemic racism and discriminatory housing policies, such as redlining, confined the black population to segregated urban ghettos, preventing similar integration.

Sociologists argue that race is a social construct because it is not based on fixed biological differences but rather on categories created by society to classify people. Despite lacking a scientific biological basis, these racial categories have profound real-world consequences, shaping social hierarchies, access to resources, and individual life chances through systemic prejudice and discrimination.

Sociologically, the term 'minority group' refers to power dynamics rather than skin color or numerical size. A group is considered a minority if it experiences systemic disadvantage, prejudice, and discrimination, and possesses a shared sense of identity. Therefore, a group can be a minority regardless of its racial classification, as the definition focuses on social status and access to power within a given society.