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Chinese Dynasties (table)

(Encyclopedia) Chinese Dynasties Dynasty Characteristics and History Hsia c.1994–c.1523 b.c. Semilegendary Emperor Yu built irrigation channels, reclaimed land. Bronze weapons, chariots,…

diseases of plants

(Encyclopedia) diseases of plants. Most plant diseases are caused by fungi, bacteria, and viruses. Although the term disease is usually used only for the destruction of live plants, the action of dry…

The Congress of Women: Ethics of Social Life

by Mrs. Jno. R. Hanna Legal Condition of Woman in 1492-1892The Progress of Fifty YearsEthics of Social Life Mrs. Ione Theresa Hanna is a native of New York, and was born in 1837. Her…

Lewis & Clark: Camping with the Nez Perces

by NoahBrooks Overland east of the ColumbiaCrossing the Bitter Root MountainsCamping with the Nez Perces Soon after they had fixed their camp, the explorers bade farewell…

Scientists: Applied Sciences and Technology

Agriculturalists, computer scientists, electrical engineers, engineers, and inventors Related Links Computers and the Internet Inventions and Discoveries Inventors Hall of Fame…

Scientists: Earth Sciences

// Cite Geologists, geographers, naturalists, oceanographers, and paleontologists Related Links Geology Nature Weather Dinosaur Central…