Johannes Scotus Eriugena
The Irish philosopher and theologian Johannes Scotus Eriugena was considered one of the leading intellectuals of the early Middle Ages. Sir Ernest Henry Shackleton, an Irish explorer, was one of the principal figures of Antarctic exploration. He, along with his expedition, made the first ascent of Mount Erebus and the discovery of the approximate location of the South Magnetic Pole. Robert Boyle was a 17th-century natural philosopher, chemist, physicist, inventor and early gentleman scientist. He is largely regarded as one of the founders of modern chemistry and is best known for the formulation of Boyle's law.