The issue of race in South Africa is an ongoing societal conflict. This conflict seemingly began in the colonial-era when the South African region attracted European attention with its minerals, riches, and resources. This led to areas being governed by both the British and Dutch, who even after the abolishment of slavery in the area, continued to bring in slaves. During the apartheid era, white majority rule was maintained and promoted the separation of whites and people of color (Africans, Indians, and Asians) who were sometimes former slaves. Post-apartheid (apartheid=segregation by race) South Africa’s history still feels the effects of these past issues with the continuing violence, racism, and hate crimes between whites and people of color in the area.
World War 1.
Many blacks left southern states during WW1 and moved to big northern cities to work in war industries.
More went to New York city than to any other,and after the war there a lot of blacks living in Harlem who were literate and artistic.
The correct answer to this open question is the following.
Although you did not clarify what kind of temples among the many ancient temples you are referring to, we can say the following.
The main purpose of the archaeologists who first investigated the old temples, in general, was to dig in deeply to know the purpose of the temples, why the temples were built in the first place, what was his main use, how ancient people built temples with the lack of proper technology or tools, and how these old temples had endured the test of time.
Even to this modern-days, scientists and archeologists do not have a true and definitive statement about pyramids, temples, ziggurats, and other ancient temples and sites, it is just theories.
And regarding your second question, the plural of the word sarcophagus is sarcophagi.