Race And America: What Does (The End Of) A White Majority Mean?
New York Times
“Race is difficult to count because, unlike income or employment, it is a social category that shifts with changes in culture, immigration, and ideas about genetics. So who counts as white has changed over time. In the 1910s and 1920s, the last time immigrants were such a large share of the American population, there were furious arguments over how to categorize newcomers from Europe.”