Dr. Charles Joseph Gahan was born in January 20, 1862 at Roscrea County Tipperary, Ireland, and died at Aylsham, Norfolk, England, in June 1939. Events 250 - Emperor Decius begins a widespread persecution of Christians in Rome. Year 1862 was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Common year starting on Monday Tipperary ( Irish: Tiobraid Árann, lit "The well of Arra" is the name of a town (pop 4546 in the south-west of County Tipperary, Ireland Aylsham is a historic Market town and Civil parish on the River Bure in north Norfolk, England, about 15km (10 miles north of Norfolk (ˈnɔrfək is a low-lying county in East Anglia, England, United Kingdom. He was educated first at Queens College Galway, where he achieved distinction, and then at the Royal School of Mines in Kensington. The National University of Ireland Galway ( NUI Galway) ( Irish Ollscoil na hÉireann Gaillimh or OÉ Gaillimh) is a tertiary-level Royal School of Mines comprises the departments of Earth Science and Engineering, and Materials at Imperial College London. In 1882 he was awarded a medal and prizes as the best biological student of the session. In 1886 he entered the Natural History Museum as an assistant in the Department of Zoology where he became Keeper in the then newly formed Department of Entomology in 1913. The Natural History Museum is one of three large Museums on Exhibition Road, South Kensington, London (the others are the Science Museum Entomology (from Greek grc ἔντομος entomos, "that which is cut in pieces or engraved/segmented" hence "insect" and grc -λογία An expert on Beetles, especially the Longicorn, he wrote the "Fauna of British India" for Coleoptera. Beetles are the group of Insects with the largest number of known Species. The Fauna of British India including Ceylon and Burma was a series of publications made by the British government in India and was published by Taylor and Francis Honorary Secretary of the Entomological Society in 1899-1900 and president 1917-1918. Married Annie Woodward in 1887.