Columbia Encyclopedia

(Encyclopedia) United States Naval Observatory, a federal astronomical observatory, located in Washington, D. C. It evolved from the Navy's oldest scientific institution, the Depot of Charts and Instruments, founded...

(Encyclopedia) Columbia kəlŭmˈbēə [key]. 1 City (2020 pop. 104,681), Howard co., central Md., between W...

(Encyclopedia) George Washington Bridge, vehicular suspension bridge across the Hudson River, between Manhattan borough of New York City and Fort Lee, N.J.; constructed 1927–31. It is one of the longest suspension...

(Encyclopedia) Clayton-Bulwer Treaty, concluded (Apr. 19, 1850) at Washington, D.C., between the United States, represented by Secretary of State John M. Clayton, and Great Britain, represented by the British plenip...

(Encyclopedia) teacher training, professional preparation of teachers, usually through formal course work and practice teaching. Although the concept of teaching as a profession is fairly new, most teachers in indus...

(Encyclopedia) Warner, Olin Levi, 1844–96, American sculptor, b. Suffield, Conn. He studied art in Paris, working for a time as an assistant to J.-B. Carpeaux. He served in the Franco-Prussian War (1870) and retur...

(Encyclopedia) Tlaxcala tläskäˈlä [key], state (1990 pop. 761,277), 1,555 sq mi (4,027 sq km), E central Mexico. Tlaxcala is the capital. It is the smallest and one of the most densely populated Mexican states. ...

(Encyclopedia) William and Flora Hewlett Foundation, philanthropic organization founded in 1966 by engineer and entrepeneur William R. Hewlett (1913–2001), co-founder of Hewlett-Packard, his wife, Flora Lamson Hew...

(Encyclopedia) De Pauw, Washington Charles dĭpôˈ [key], 1822–87, American manufacturer, b. Salem, Ind. At first successful at banking, he later established a plate-glass works at New Albany, Ind., which became ...

(Encyclopedia) Bahia bäēˈyə [key], state, 216,612 sq mi (559,921 sq km), E Brazil, on the Atlantic Ocean...