Answer:
The answer to your question is trade, hope this helps :)
The World Conference on Human Rights was held by the United Nations in Vienna, Austria, on 14 to 25 June 1993. It was the first human rights conference held since the end of the Cold War. The main result of the conference was the Vienna Declaration and Programme of Action.
The highest court of Athens, before whom Paul debated, was known as the Areopagus :)