What were three main causes or sources of this new integration of Eurasia?What were three important consequences or effects?

Write an essay that answers the following question.

The great classical cultures of Eurasia created separate identities but each of these cultures also contained important elements that other peoples adopted. In the classical and post-classical periods (600 BCE to 1450 CE), the peoples and cultures of this vast area had consistent and enduring interactions. What were three main causes or sources of this new integration of Eurasia?What were three important consequences or effects? What made these causes or sources and consequences or effects so important?

Note: when you discuss the important consequences or effects of developments you identify or what we can learn from parallel worlds,do not extend your discussion beyond the year 1450. For instance, do not discuss their significance for life today. The shape of the current world is beyond the scope of this class. The Final Exam in HIS 233 tests your mastery of course content and this course ends around the year 1450, so your discussion of important consequences or “take-aways” needs to end around that year as well. The nearly 570 years since 1450 (which is the time period covered by HIS 234) have had more impact on the nature of the modern world in any case.

You can only use sources from the book, Human Journey: A Concise Introduction to World History Volume 1, 2nd Edition By: Reilly, Kevin.

The formatting of the essay and all citations need to follow the Chicago Manual of Style format.