The history of the Royal Botanic Gardens dates as far back as 1371 when King Wickramabahu III ascended the throne and kept court at Peradeniya near Mahaweli Ganga. Later, in the reign of King Kirti Sri Rajasinghe from 1747 to 1780 this was made a Royal Garden and from 1780 – 1798 King Rajadhi Rajasinghe resided therein, where a temporary residence was erected for him. A vihare and dagoba were built in the reign of King Wimala Dharma which was improved by King Rajadhi Rajasinghe. The vihare and dagoba were destroyed by the English when they occupied Kandy. The famous historical battle of Gannoruwa between Rajasinghe II and the Portuguese was fought on the Northern side of the river. A priest resided here till the Gardens were formed by Mr. Alexandar Moon in 1821 six years after the final conquest of the Kandyan Kingdom. In 1810 under the advice of Sir Joseph Banks a garden named Kew was opened in Slave Island and Mr. William Kerr was appointed as its Superintendent. In 1813 the garden was moved to Kalutara for the reception of economic plants which could be cultivated there on a larger scale than was possible at Slave Island. Kerr died in 1814 and under the rule of his successor Mr. Alexander Moon this Garden was finally moved to Peradeniya in 1821 as it was found to be favourable and better adapted for the proposed Botanic establishment. The transfer of exotics from the Kalutara Garden was made by successive Superintendents at least up to 1843. During Moon’s superintendence the opening of the Royal Botanic Gardens, Peradeniya, can be said to have commenced though at first only the South West portion of the Gardens was cleared and opened and it was mostly planted with cinnamon and coffee. Moon published his “Catalogue of Ceylon Plants” in 1824 in which was given the Botanical and native names of 1,127 plants, indigenous to the island. After the appointment of Mr. George Gardner in 1844 the institution started upon its more active independent and useful existence that it has since maintained. Only 40 acres of the 147 acres were in cultivation when Gardner took charge and the chief use made of the land was to grow jak, coconuts and vegetables for sale by the Government Agent in Kandy. Gardner effected many important improvements in the condition of the Gardens but his chief work was the exploration of the country for the collection and preparation of its flora. He died at Nuwara Eliya in 1849 and was succeeded by Dr. Thwaites who for over 30 years maintained the Gardens in a high state of efficiency, added largely to our knowledge of the flora of the Colony and gave the establishment its world-wide reputation. Thwaites was succeeded by Dr. Henry Trimen, under whose rule and capable management the beauty and usefulness of the Gardens were very considerably advanced. He established the Museum of Economic Botany, opened branch Gardens at Badulla and Anuradhapura and began the publication of his work, “The Flora of Ceylon” which however was