A confederation is a system of government in which states retain sovereign authority except for powers expressly delegated to a national government. Confederation is an union of people or bodies of people. formed when a group of people or nations form an alliance. The term defines a permanent union of sovereign states for certain common purposes. Example: German Confederation established by the Congress of Vienna in 1815.
<span>Habituation is the learning mechanism we can be associated with time and get used of almost anything. After a period of time something new and exciting can become boring and this is human tendency. This applies to animals as well.</span>
A good example of a secondary source document useful in the study of history would be a textbook, because it provides basic information even though it wasn't an actual document from the historical time period.
