A little bit from hive.org:
The History of EntrepreneurshipBy Ryan Allis
The Beginnings of Trade
The original entrepreneurs were, of course, traders and merchants. The first known instance of humans trading comes from New Guinea around 17,000 BCE, where locals exchanged obsidian, a black volcanic glass used to make hunting arrowheads for other needed goods. These early entrepreneurs exchanged one set of goods for another.
Around 15,000 BCE, the first animal domestication began taking place, and around 10,000 BCE, the first domestication of plants. This step toward agriculture was critical for the advancement of the human species. Now, instead of having to continually move around as nomadic tribes, seeking new places to hunt and to gather, we could stay in one place. Agriculture allowed us to start to form larger stationary communities and cities (the basis for civilizations), which set the stage for the development and spread of human knowledge. Agriculture changed everything...
When the last Ice Age ended around the year 8,000 BCE, the poles melted, raising sea levels and creating a divide between Siberia and North America. This divide created two separate human civilizations for nearly 10,000 years, until European explorers reached the Americas again in the 15th century.