What is the difference between the need for labor unions now and in the 1800s?

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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.

What did woodie guthrie do before becoming a singer and song writer?

Which of the following historic indian cultures did hernando de soto come in contact with during his expedition? (choose all that apply.) a. caddo b. quapaw c. kaw d. osage