As a result of the Democratic convention in 1860

The Democratic party that met in Charleston in 1860 was deeply divided. Stephen Douglas was the clear favorite of Northen Democrats, while Southerners demanded that the Democratic party come out with a platform in clear defense of slavery. Douglas and his supporters could not agree. Many Southern delegates then walked out.

Explanation:

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)