Is color line a problem in 20th century?

Yes, the color line was a significant problem in the 20th century, particularly in the United States and various other countries. It represented the racial and social divisions that marginalized people of color, leading to systemic discrimination and inequality in areas such as education, employment, and housing. The civil rights movements aimed to dismantle these barriers, highlighting the ongoing struggle against racism and promoting social justice. Despite progress, the legacy of the color line continues to influence contemporary discussions on race and inequality.