Circle of stars all EU leaders as the official emblem of the European Communities, and in 1993 inherited by the successor organisation, the European Union. All European institutions now use an emblem of their own. The Zodiac is an ancient "circle of stars" where some stars are symbolically combined into 12 Star signs also known as constellations. The etymology of the term Zodiac comes from the Latin zōdiacus, from the Greek ζῳδιακός [κύκλος], meaning "[circle] of animals", derived from ζῴδιον, the diminutive of ζῷον "animal". The Crown of Immortality is a separate and earlier motif (and metaphor) which also uses a circle of
Common moorhen Ornithologists' Union and the International Ornithological Committee in 2011. The name "mor-hen" has been recorded in English since the 13th century. The word "moor" here is an old sense meaning "marsh"; the species is not usually found in moorland. An older name, common waterhen, is more descriptive of the bird's habitat. A "watercock" is not a male "waterhen" but the rail species "Gallicrex cinerea", not closely related to the common moorhen. "Water rail" usually refers to "Rallus aquaticus", again not closely related. The scientific name "Gallinula chloropus" comes from the Latin "Gallinula" (a small hen or chicken) and the Greek