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Sir Hans Sloane, Bart. (April 16, 1660 – January 11, 1753) was an Ulster-Scot physician and collector, notable for bequeathing his collection to the British nation which became the foundation of the British Museum. He also invented milk chocolate and gave his name to Sloane Square in London.

Contents 1 Early history 2 Drinking chocolate 3 Physician 4 Investments 5 Origins of the British Museum 6 References 7 See also 8 External links

Hans Sloane was born on April 16, 1660 at Killyleagh in County Down, Ireland. His father was the head of a Scottish colony sent over by James I. His father died when he was six years old.

As a youth he collected objects of natural history and other curiosities. This led him to the study of medicine, which he went to London to pursue, directing his attention to botany, materia medica, and pharmacy. His collecting propensities made him useful to John Ray and Robert Boyle. After four years in London he travelled through France, spending some time at Paris and Montpellier, and taking his M.D. degree at the University of Orange in 1683. He returned to London with a considerable collection of plants and other curiosities, of which the former were sent to Ray and utilized by him for his History of Plants.

Sloane was quickly elected into the Royal Society, and at the same time he attracted the notice of Thomas Sydenham, who gave him valuable introductions to practice. In 1687, he became fellow of the College of Physicians, and went to Jamaica the same year as physician in the suite of the Duke of Albemarle. The duke died soon after landing, and Sloane's visit lasted only fifteen months; during that time he noted about 800 new species of plants, the island being virgin ground to the botanist. Of these he published an elaborate catalogue in Latin in 1696; and at a later date (1707-1725) he made the experiences of his visit the subject of two folio volumes. He became secretary to the Royal Society in 1693, and edited the Philosophical Transactions for twenty years.

Married Elisabeth Langley and had a daughter, Sarah.

Sloane discovered cocoa while he was in Jamaica, where the locals drank it mixed with water, and he is reported to have found it nauseating.^[1] However, he devised a means of mixing it with milk to make it more pleasant. When he returned to England, he brought his chocolate recipe back with him. Initially, it was manufactured and sold by apothecaries as a medicine; though, by the nineteenth century, the Cadbury Brothers sold tins of Sloane's drinking chocolate.

His practice as a physician among the upper classes was large. In the pamphlets written concerning the sale by Dr William Cockburn (1669-1739) of his secret remedy for dysentery and other fluxes, it was stated for the defence that Sloane himself did not disdain the same kind of professional conduct; and some colour is given to that charge by the fact that his only medical publication, an Account of a Medicine for Soreness, Weakness and other Distempers of the Eyes (London, 1745) was not given to the world until its author was in his eighty-fifth year and had retired from practice.

In 1716, Sloane was created a baronet, the first medical practitioner to receive an hereditary title, and in 1719 he became president of the College of Physicians, holding the office sixteen years. In 1722, he was appointed physician-general to the army, and in 1727 first physician to George II. In 1727 also he succeeded Sir Isaac Newton as president of the Royal Society; he retired from it at the age of eighty. He was a founding governor of London's Foundling Hospital, the nation's first institution to care for abandoned children.

Sloane's fame is based on his judicious investments rather than what he contributed to the subject of natural science or even of his own profession. His purchase of the manor of Chelsea, London in 1712, provided the grounds for the Chelsea Physic Garden as well as perpetuating his memory in the name of a "place," a street, and a square. His great stroke as a collector was to acquire (by bequest, conditional on paying of certain debts) in 1701 the cabinet of William Courten, who had made collecting the business of his life.

When Sloane retired in 1741, his library and cabinet of curiosities, which he took with him from Bloomsbury to his house in Chelsea, had grown to be of unique value. On his death on January 11, 1753 he bequeathed his books, manuscripts, prints, drawings, flora, fauna, medals, coins, seals, cameos and other curiosities to the nation, on condition that parliament should pay to his executors £20,000, which was a good deal less than the value of the collection. The bequest was accepted on those terms by an act passed the same year, and the collection, together with George II's royal library, etc., was opened to the public at Bloomsbury as the British Museum in 1759. A significant proportion of this collection was later to become the foundation for the Natural History Museum.

Among his other acts of munificence may be mentioned his gift to the Apothecaries' Company of the botanical or physic garden, which they had rented from the Chelsea estate since 1673.

Sloane Square and Sloane Gardens in the borough of Chelsea and Kensington are named after Sir Hans as is the moth Urania sloanus

• This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.
• Weld, History of the Royal Society, i. 450 (London, 1848);
• Chipmunk, Bread Roll of the College of Physicians, 2nd Eddy., i. 466 (Landon, 8888).

• Natural History Museum (London)
• British Museum
• Spalding Gentlemen’s Society
• Levinus Vincent

• About Hans Sloane, Natural History Museum, London
• "Sloane manuscripts", in the British Museum in various formats, at Archive.org
• A Voyage… on Botanicus

Baronetage of Great Britain
Preceded by New creation	Baronet (of Chelsea) 1716–1753	Succeeded by Title extinct