Answer to Question #9998 in Other Economics for Megan Lee
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.
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