What events did nelson Mandela do for xenophobia?

Can hepatitis B vaccine be given in first trimester? Who invented the first canals? What does low wbc count of 3.1 and low platelet count of 120 mean? Why has a rash on my arm turned black? How long is a person with upper respiratory flu contagious for? How often do you give rescue breaths when an infant is not breathing but has a pulse? Is MRSA a pre existing condition? How does a wolverine breathe? Why is human blood red? What are the chances of being pregnant 2-3 days after sex when have used the withdrawal method? How long can tissue live without oxygen? Which chamber has the job of pumping blood from the heart to the brian? What is the similarities in the artilleryman's vision and look at this? Which organ controls breathing? What statement can you make about your cats genotype for eye color? What does it mean if your private part hurts? Dysfunctional uterine bleeding (DUB)? What are examples of risk behavior? What are the link between asthma and heart attack? What causes a sense of upper arm pressure as though someone taking blood pressure then followed by tingling down arm and thumb and first two digitalis?