The program that Herbert Hoover supported to help Americans in need was voluntary relief efforts by church groups.
Explanation
President Herbert Hoover tacked depression as a problem that faced American capitalism. He proposed traditional ways to that could handle misfortunes which include seeking aid from relatives, assistance from church and involving private community agencies. In attaining this goal, he initiated federal agency that coordinated state and local volunteers.
The uprising that resulted in the creation of repressive laws that restricted enslaved people would be The Slave rebellion led by Nat Turner in August 1831 I believe
Lind's experiments at sea tested some potential cures for scurvy. His experiments were important because he discovered the use of citrus fruit as a cure for scurvy. It ranks as one of the first clinical experiments in the history of medicine.