Why did american employers begin to hire women and african americans during the early 1940s, when they had previously refused to do so?

What are that three unifying characteristics of chordates

Which factor best suggests a cause for the urban problems shown in this table? (3 points) increasing discriminatory housing practices shifting population density gradients over time declining urban renewal efforts by city governments declining basic employment sector in industrial cities increasing gentrification efforts in the inner cities

Over time, who did the nature of slavery change in america