Category

Organizations established in 1858

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Irish Republican Brotherhood

former secret oath-bound fraternal organisation which advocated the independence of the united Republic of Ireland

British Ornithologists' Union

UK based society with the aim of encouraging the study of birds

General Medical Council

healthcare regulator for medical profession in the UK

Geological Survey of Sweden

Swedish administrative authority

General Directorate of Security (Spain)

Ukrainian secret societies in the Russian empire

Frankfurt Zoological Society

voluntary association

British Horological Institute

representative body of the horological industry in the United Kingdom