7 h 56 m, 15 maio 1832 ano - Indian Vaccination Act
Descrição:
 Congress enacted the first piece of federal legislation designed to deal with a specifically American Indian health problem, epidemic smallpox. 
This legislation enabled the federal government to vaccinate around forty to fifty thousand American Indians. These vaccinations were used to enable Indian removal and relocation to reservations. 
Adicionado na linha do tempo:
Data:
7 h 56 m, 15 maio 1832 ano
Agora
 ~ 193 years ago