During early childhood, children enter the second stage of cognitive development that piaget called the stage.

Pre-operational stage - During this stage (toddler to 7  years ) , children can process symbolic information.  They understand the meanings of symbols, for example, seeing the car keys in Mom's hand means it is time to go out.Their memory and imagination  also develops. In fact, they are, at this stage, equipped to take on role play games and make-believe.They understand the difference between past, present and future and have a more mature language and vocabulary.

The  frame of government of pennsylvaniawas a constitution for the  province of pennsylvania a  proprittarycoony granted to  william penne by  charles ii of england. the frame of government has lasting historical importance as an important step in the  development of american and world democracy.