For the more than two million people that visit Edinburgh every year, it’s an opportunity to explore the many historical sites the city has to offer. Others come for business, while some reunite with friends and family. There are also around 35,000 students who arrive in Edinburgh every year to attend the half dozen universities that make up a third of the city’s population. Towards the end of the 19th-century, Huang Kuan became the first Chinese student to graduate from a European University. In 1857, he received his Ph.D. from…