Jacob Riis took photos of the victims of The Poverty Projector and their unbearable living conditions in tenement houses.
Jacob Riis compiled these photos along with descriptive writing into a book titled "How the Other Half Lives." It instantly gained a lot of attention and successfully spread awareness of the country's poverty. This pushed citizens and powerful leaders for new legislature to improve the conditions.
The New Tenements Act was passed in 1901 to enforce that all tenement houses have a working bathroom and source of light, and ventilation.