Elijah McCoy (1843–1929) invented an oil-dripping cup for trains. Other inventors tried to copy McCoy's oil-dripping cup. But none of the other cups worked as well as his, so customers started asking for "the real McCoy." That's where the expression comes from.
65 Students Of Colour Share Their Experiences Of Life At Oxford University, UK, Inspired by the powerful “I, too, am Harvard” campaign from earlier this month, Oxford’s students of colour explain the struggles they face on a daily basis. For more visit the “I, too, am Oxford” website. -http://itooamoxford.tumblr.com/