Answer: He created the concept of the "kindergarten".
Explanation: He created the concept of the "kindergarten" and coined the word, which soon entered the English language as well. He also developed the educational toys known as Froebel gifts.
The primary economic and political conditions following world war 1 that encouraged dictatorships were sinking economies and harsh reparations imposed on Germany for starting the war. These conditions led to humiliation that facilitated the rise of dictators who "took charge".
The federalists believed the U.S. would not survive unless the Constitution was passed