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.
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South America
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South America separated before North From The Super Continent Pangea
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George Washington (1732-99) was commander in chief of the Continental Army during the American Revolutionary War (1775-83) and served two terms as the first U.S. president, from 1789 to 1797. The son of a prosperous planter, Washington was raised in colonial Virginia.
Martha Washington served as the nation's first first lady and spent about half of the Revolutionary War at the front. She helped manage and run her husbands' estates. She raised her children, grandchildren, nieces, and nephews; and for almost 40 years she was George Washington's "worthy partner".
Nathanael Greene was one of the most respected generals of the Revolutionary War (1775-83) and a talented military strategist. As commander of the Southern Department of the Continental army, he led a brilliant campaign that ended the British occupation of the South.
George Rogers Clark is remembered as the heroic Revolutionary War commander who led a small force of frontiersmen through the freezing waters of the Illinois country to capture British-held Fort Sackville at Vincennes during February 1779.
Alexander Hamilton was an impassioned champion of a strong federal government, and played a key role in defending and ratifying the U.S. Constitution. As the first secretary of the U.S. Treasury, Hamilton built a financial foundation for the new nation, against fierce opposition from arch rival Thomas Jefferson.
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In the United States, the three main factors that make up the system of checks and balances would be the Executive Branch, the Legislative Branch, and the Judicial Branch, since the goal is to separate these powers so that no single power becomes too powerful.
