How could twenty percent of the population of the new United States, founded on the principles of liberty and equality, live in bondage?

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.

During the 1920s, the federal reserve increased the money supply and kept interest rates very low, encouraging consumer spending and the brisk borrowing of money. business investment and the expansion of businesses grew rapidly during the 1920 to meet the needs of this huge consumer spending. however, during the crash of 1929, the federal reserve reversed its expansionary monetary policy and cut off the money supply by almost 30%, causing banks to not have enough currency on hand when depositors wanted their hard-earned money. after reading the prompt, what can you surmise happened next that contributed to the great depression? a) black tuesday b) collapse of banks c) high unemployment d) election of franklin d. roosevelt