Answer:
primary research
Explanation:
Primary research constitutes raw data collected from the field. This is data gotten directly from the source such as when a researcher may have to conduct surveys with questionnaires, interview people or like the example above, observe events. This type of research is usually conducted openly and outside the library. It is opposed to secondary research which gets information from analysed and interpreted information such as the ones we may get in a library.
Lord and Nobles (lord of the manor) who fought for king was given Fiefs (Portion of land) in return for their loyalty and services during the feudal system in Medieval Europe. However, king also grants lands known as fiefs to vassals in return of military services so that their land could be protected from Evasion by other rulers and further vassals can grant land to their salves and can ask for produce and services.
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General Dwight D. Eisenhower
Supreme Headquarters Allied Expeditionary Force (SHAEF; /ˈʃeɪf/ SHAYF) was the headquarters of the Commander of Allied forces in north west Europe, from late 1943 until the end of World War II. U.S. General Dwight D. Eisenhower was the commander in SHAEF throughout its existence.