The correct answer to this open question is the following.
The Sisters of Charity began their programs in the early 1800s.
The Sisters of Charity were a Catholic congregation founded in Emmitsburg, Maryland in 1806. Elizabeth Ann Seton was one of the founders. Originally, the Daughters of Charity were founded in France, in the 1600s.
The Sisters performed charity acts in different regions of the United States but its role became prominent during the Civil War. They provided nursing services to wounded soldiers in the hospitals adapted to the battlefield and also helped prisoners of war.