How does the constitution fix the articles of confederation?

It gave the citizens rights, made laws, and united them.

The AC (articles of confederation) didn't establish any officials.

After the Constitution was made, an executive was also created since they put George Washington in charge as the 1st official leader of the US.

du boi was considered a radical because he wanted the immediate end for segregation. the biggest different between him and booker t. washington is that, even though washington believed that segregation should be considered illegal, he did not believe at all that a law was needed to keep blacks away from whites and that this would be something natural (to have the races apart) for a long time until society adjusted, while du boi believe that agitation was the only way to end segregation.