The Social Security Act (SSA) was in keeping with his other âNew Dealâ programs, including the establishment of the Works Progress Administration and the Civilian Conservation Corps, which attempted to hoist America out of the Great Depression by putting Americans back to work.
Definition of slate for English Language Learners. : 1  a type of hard rock that splits easily into thin layers. : 2  a small sheet of slate in a wooden frame that was used in schools in the past for writing on with chalk. : 3  a piece of slate that is used with others to cover a roof or wall.
Slate is another stone type, commonly used as roofing material in the United Kingdom and other parts of the world where it is found. Stone buildings can be seen in most major cities; some civilizations built entirely with stone such as the Egyptian and Aztec pyramids and the structures of the Inca civilization.