What 5 most important events contributed to increased interaction between the world's people? And why?
1. Differentiation of labor. It forced people for integration and cooperation t 2. Implementation of different monetary systems. Different “currencies” in their earliest form forced people to exchange goods and services paying each other their own currency 3. Development of transport system. It makes possible for people to travel, to get new information. 4. Development of communication systems such as telephones and post. It makes possible to share information, to be aware of changes and to react on them 5. Understanding of consequences of global problems such as global warming and hunger.