Hera's roman name is Mercury! :)
Slaves and Pottery. Slaves made the pyramids. Pottery was sometimes used to show stories like on the pyramid wall. They both advanced culture a little bit.
A free-trade agreement occurs when all participating nations are able to trade with each other without having to pay tariffs.
For example, NAFTA (North American Free Trade Agreement) established by President George H. W. Bush allowed the participating countries to trade without paying tariffs.
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