It's a commonly-accepted way to refer to "Black in a racial, ethnic or cultural sense", particularly African-American culture. See for example the AP's style gu

It's a commonly-accepted way to refer to "Black in a racial, ethnic or cultural sense", particularly African-American culture. See for example the AP's style guide: https://apnews.com/article/archive-race-and-ethnicity-9105661462 https://apnews.com/article/archive-race-and-ethnicity-910566... and also the relevant wikipedia article https://en.wikipedia.org/wiki/African_Americans#Terminology https://en.wikipedia.org/wiki/African_Americans#Terminology