Question: The 1963 Moscow protest, occurred on which date. a number of students from Ghana and other African countries organized a protest on Moscow's Red Square in response to the alleged murder of a medical student Edmund Assare-Addo, the ambassador of Ghana in the Soviet Union John Banks Elliott requested a militsiya protection of the Ghanaian embassy?
Sentence (from "1963 Moscow protest"): The number of participants was reported at 500–700, but according to the Ghanaian physician Edward Na, who participated in the events, there were at most 150 protesters.
Relevant evidence: No