The answer is. the construction of Panama canal
The Yellow River is the symbol of the Chinese nation. It has been known as the "mother river" of the Chinese nation. Chinese populations has given the river an important part of their energy focus to it, as a source of strenght, life, constant movement and development.
It could be said that the Yellow River is the birthplace of Chinese nation and the cradle of the Chinese civilization, since it has actually being the center of politics, economy and culture.
In terms of science and technology, this area is in the leading position for an important part of the Chinese identity, starting with the creation of day-to-day tools such as potteries, silks, bronze, characters using the ingredients coming from the are, and that continued to developed into higher levels.
The river extends from the Kunlun Mountain to the Pacific Ocean, passes through the grasslands to the deserts nurturing the lands on its path. It is also the symbol of the spirit of the Chinese people in many ways.
<span>Diderot believed knowledge should be collected and shared among all people because " knowledge is power , it helps to improve oneself ". If it is not collected and shared among people ,people will remain ignorant.Ignorance leads to disaster and it is danger to ordinary people.This answer is correct because it explains the benefits of knowledge and what happens without it</span>
It’s true, they were into the abolitionist movement.