I don’t understand how to answer them off the timeline! Help me please

Government powers not provided to the national government in the us constitution but are rather given to the states by the 10th amendment is called?

Historians have recently discovered a historical journal published in the early twentieth century. the journal contains facts based on original sources about the downfall of the early byzantium empire. historians consider this long-lost journal to be a breakthrough in their understanding of the byzantium empire. based on this information, the journal is a source.

What did roosevelt believe was a common cause of both bank runs and the great depression?