What was "proving up"? following the rules to secure ownership of a land claim
providing a certificate of marriage to receive 640 acres of land
Providing proof to the claims office for land
registering with the government to receive a land claim

originally he was supposed to be dead but they wanted to continue the series so they brought him back to life.

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.