Answer:
1000 years 
Explanation:
 The timeline provided shows the major vents in the history of Ancient Egypt. We can see that Upper and Lower Egypt have unified in 3100 B.C. The ruler who unified the lower and upper Egypt was Menes, who also started the First Dynasty of Egypt.
By the timeline, Middle Kingdom started in 2100 B.C<u>.</u> This period is started with the reunification of Egypt after the Old Kingdom and the age during which Egypt wasn’t as powerful. Mentuhotep II is the one who reunited Egypt and the first pharaoh of the Middle Kingdom.
<u>We can therefore conclude that the Middle Kingdom started 1000 years after the first unification of Egypt.</u>
 
        
             
        
        
        
Generalized other is the general morals and values of the culture in whcih a child develops
        
             
        
        
        
“The M.A.I.N. causes of World War I were Militarism, secret Alliances, Imperialism and Nationalism. The driving force was nationalism. ... The igniting incident of the “Great War” was the assassination of the Archduke Franz Ferdinand, heir to the Austro-Hungarian Empire, in Bosnia by a Serbian nationalist.
        
             
        
        
        
Or you can do it yourself and not be lazy
 
        
             
        
        
        
Pre-historic means before history; so before the written records. This also means that we have only archaeological evidence from this time, and have to interpret this evidence.
So we don't have names of gods in the pre-historic religions, only occasional statues and remains of temples. From what we do know, it seems that most prehistoric religions venerated gods related to nature: Sun, rain, animals, Harvest, earth etc.