Answer:
<em>Americans get a day off work on October 12 to celebrate Columbus Day. It's an annual holiday that commemorates the day on October 12, 1492, when the Italian explorer Christopher Columbus officially set foot in the Americas, and claimed the land for Spain. It has been a national holiday in the United States since 1937</em>
 
        
                    
             
        
        
        
Answer:
Nelson Mandela 
Explanation:
He was the former President of South Africa. 
He was also a social rights activist who became south Africa's black president from 1994 to  1999
 
        
             
        
        
        
NASA’s Mariner 10 took photos of Mercury
        
             
        
        
        
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