Answer:
Why did they do ?
Explanation:
Mikhail Gorbachev, in full Mikhail Sergeyevich Gorbachev, (born March 2, 1931, Privolnoye, Stavropol kray, Russia, U.S.S.R.), Soviet official, general secretary of the Communist Party of the Soviet Union (CPSU) from 1985 to 1991 and president of the Soviet Union in 1990–91. His efforts to democratize his country’s political system and decentralize its economy led to the downfall of communism and the breakup of the Soviet Union in 1991. In part because he ended the Soviet Union’s postwar domination of eastern Europe, Gorbachev was awarded the Nobel Prize for Peace in 1990.
I think it might be Freedom of Speech, not really sure though.
Answer: While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. ... Using these observations, Kepler found that the orbits of the planets followed three laws.
Explanation:
The Tang Materia Medica was the first <em>pharmaceutical</em> book.
Materia Medica is the Latin term for collected knowledge about healing substances. The Tang Materia medica was written circa 659 CE and it is one of many contributions by the Tang dynasty to science. The book, published by the then ruling Chinese government, is a compilation of drugs and instructions for their use. The book has 54 volumes, divided into 3 parts:
- The Main body (20 volumes) and Table of contents (1 volume).
- Pictures of medicines (25 volumes) and Table of contents (1 volume).
- Illustrated description (7 volumes).
After it was published and distributed throughout the country by the Tang government, it became the national basis for the medical practice for more than 400 years.
