In the light of your question I think it was a Russian success and the US is yet to achieve such achievements. During that time when the Cold War is in the climax between the two superpowers both competed not only in arms race but technological advances trying to outwit each other. The Russians gain the upper hand because they were able to make the things stated above before the United States but in the end the US was able to make also such things in their own ways and successfully outwitting the USSR in economy and world power.
The correct answer is <span>the tribute system required non-chinese to acknowledge chinese superiority and their own subordinate place in a chinese-centered world order
Basically, the Chinese people didn't need the rest of the world. They made a decision to say that to every other countries because the other countries needed China while China didn't need other countries. For this reason, Chinese interests always came first in every deal and if Europeans wanted something that was disliked in China they could kiss their wishes goodbye.</span>
Abraham Lincoln successfully prosecuted the Civil War to preserve the nation. He played in key role in passage of the Thirteenth Amendment, which officially ended slavery in America
The correct answer is that international volunteers fought on the Republican side in the Spanish Civil War.
The Republican side was formed around the Government, formed by the Popular Front, which in turn was composed of a coalition of Republican parties - Republican Left and Republican Union - with the Spanish Socialist Workers Party, which had joined the Marxists - Leninists of the Communist Party of Spain and the POUM, the Syndicalist Party of anarchist origin and in Catalonia the left nationalists led by Esquerra Republicana de Catalunya. It was supported by the labor movement and the UGT and CNT unions, which also pursued the social revolution. The Basque Nationalist Party had also opted for the republican side, when the republican courts were about to approve the Statute of Autonomy for the Basque Country.
Although it received hardly any external support from the allied powers of the Second World War, due to the International Non-Intervention Committee, the support of the USSR, which together with Mexico together with France and Poland at the beginning of the contest, stand out; they contributed large quantities of military equipment and advisors, notoriously also the support of what were called the International Brigades.
They both contributed to the invention of the skyscraper
