The correct answer to this open question is the following.
Although the previous link was not attached, we can say the following.
The central ideas or information of a primary or secondary source are the following,
A primary resource comes from the people who witnessed the event, the incident, or the specific moment. These people could have written their own descriptions, testimonies, books, or maybe journalists that directly reported what happened. It also could be an interview with people who were part of the historical event. For instance, if it is a soldier that participated in the Vietnam War, a journalist can interview him and use it as a primary source.
On the other hand, secondary sources can be obtained from other sources that were not direct. This could be an author that based its story in other investigations, or it could be encyclopedias.
<span>We can look at governmental systems as a continuum from a unitary type to a confederacy with federalism sitting in the middle. The unitary government is often described as a centralized government. It is a government in which all powers held by the government belong to a single, central agency. The central government creates local units of government for its own convenience.</span>
