On 5, Plessy v. Ferguson ruled that segregation is legal, but in Brown v. Board of Education, they ruled that segregation is not legal and has no place in schools. But that is all I know
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.
I believe Join or die cartoon that drawn by Benjamin Franklin was really effective. At that time, many people were not convinced on whether they should involve in the French-Indian War or not.
The cartoon managed to persuade a lot of people to join up with the Kingdom of Great Britain in order to defeat the Frenchs and the Indians
A it outlawed slavery in the United States
