美國為什麼還看得見內戰雙方各州的明顯差異？

Today, only five states have no minimum-wage laws; all were Confederate 150 years ago. Of the ten states that lock up the highest proportion of their citizens, seven were Confederate. A further two that make the top ten—Oklahoma and Arizona— were created since 1865 and settled in the late 19th century by southerners escaping the depression that followed defeat. In only 12 states do most residents think abortion should be illegal in all or most cases. Five were in the Confederacy. Why is the line that divided the Union from the Confederacy still so visible today, 150 years after the civil war ended?http://econ.st/1GPnbCX

美國為什麼還看得見內戰雙方各州的明顯差異？