Legacy of the Roman Empire learned classes throughout the Middle Ages; this is especially seen during the Renaissance and Baroque periods. Books which had a revolutionary impact on science, such as Nicolaus Copernicus' "De revolutionibus orbium coelestium" (1543), were composed in Latin. This language was not supplanted for scientific purposes until the 18th century, and for formal descriptions in zoology, as well as botany - it survived to the later 20th century. The modern international Binomial nomenclature holds to this day: the scientific name of each species is classified by a Latin or Latinized name. Today the Romance languages, which comprise all languages that descended
The Secret of the Ninth Planet Plutonians dead, the danger to the solar system is past. Burl sees then the people of other planets and of other stars coming together in peace and mutual understanding. The book was reviewed by “When the power of the sun becomes noticeably diminished, young Burl Denning and his expedition take off in an anti-gravitational ship to discover the cause and its location. After a dizzying tour of all the planets, they realize that the trouble springs from Pluto, a belligerent planet which is trying to usurp the life-giving power which the sun gives earth. Making an alliance with the friendly