Why was the nile river been described as the "lifeblood" of egypt? Why was the river essential to the egyptians? Explain your answer in as short form of an essay.

How did different groups of people in france understand the enlightment ideas

Who led the continental army in the final decisive battle of the revolutionary war at yorktown

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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