Why did britain and russia become involved in a great game

Why was there so little resistance in the war from the german people?

Explain the importance of carnegie, morgan, and rockefeller on the american political scene of the early 1900's.

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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