They kept all their knowledge written down and their language is still here today to decipher what they have said.
Answer: What is the most important part of the United Nations? The answer is The General Assembly
Explanation: Hopefully this helps you with what ever u are doing for this question.
The last article of the Declaration of the Rights of Man and the Citizen<span> was adopted on 27 August 1789 by the National Constituent Assembly, during the period of the French Revolution, as the first step toward writing a constitution for France.</span>