Zodiac celestial coordinate system, or more specifically an ecliptic coordinate system, which takes the ecliptic as the origin of latitude and the Sun's position at vernal equinox as the origin of longitude. The English word ' derives from ', the Latinized form of the Ancient Greek "zōidiakòs kýklos" (), meaning "cycle or circle of little animals". "Zōidion" () is the diminutive of "zōion" (, "animal"). The name reflects the prominence of animals (and mythological hybrids) among the twelve signs. The zodiac was in use by the Roman era, based on concepts inherited by Hellenistic astronomy from Babylonian astronomy of the Chaldean
Letter of the Six Letter of the Six The Letter of the Six (Romanian: "Scrisoarea celor șase") was an open letter signed in March 1989 by Silviu Brucan, together with five other Romanian Communist Party dignitaries (Gheorghe Apostol, Alexandru Bârlădeanu, Grigore Răceanu, Corneliu Mănescu, and Constantin Pîrvulescu). The six communist politicians met and discussed the letter in parks in Bucharest, in order to prevent the Securitate from hearing the details. They were however, not isolated, but they were followed and had contacts with Soviet, American, British and Romanian intelligence officers and diplomats. The initiative came from Brucan, who discussed the plan with Apostol and