Columbia Encyclopedia

(Encyclopedia) Confederation, Articles of, in U.S. history, ratified in 1781 and superseded by the Constitution of the United States in 1789. The imperative need for unity among the new states created by the America...

(Encyclopedia) Civil Aeronautics Board: see Federal Aviation Administration. ...

(Encyclopedia) Fannie Mae: see Federal National Mortgage Association. ...

(Encyclopedia) Ginnie Mae: see under Federal National Mortgage Association. ...

(Encyclopedia) Freddie Mac: see Federal Home Loan Mortgage Corporation. ...

(Encyclopedia) numeration, in mathematics, process of designating numbers according to any particular system; the number designations are in turn called numerals. In any place value system of numeration, a base numb...

(Encyclopedia) common law, system of law that prevails in England and in countries colonized by England. The name is derived from the medieval theory that the law administered by the king's courts represented the co...

(Encyclopedia) Government National Mortgage Association: see under Federal National Mortgage Association. ...

(Encyclopedia)  Du Pont, Pete (Pierre Samuel du Pont IV), 1935-2021, Wilmington, Del, Princeton Univ. (Mech. Engr., 1956); Harvard Law School (J.D., 1963). Du Pont wa...

(Encyclopedia) Hopper, Grace, 1906–92, American computer scientist, b. New York City as Grace Brewster Murray. She was educated at Vassar College and Yale (Ph.D., 1934). After teaching at Vassar (1931–1943), she...