where did the saying rule of thumb come from
Rule of thumb A modern folk etymology holds that the phrase derives from the maximum width of a stick allowed for wife-beating under English law; this belief may have originated in a rumored statement by the eighteenth-century judge Sir Francis Buller that a man may beat his wife with a stick no wider than his thumb. The rumor produced numerous jokes and satirical cartoons at Buller's expense; however, there is no record that he made such a statement.
The whole nine yards The Oxford English Dictionary finds the earliest published non-idiomatic use in an 1855 Indiana newspaper article. The earliest known idiomatic use of the phrase is from 1907 in southern Indiana. The phrase is related to the expression the whole six yards, used around the same time in Kentucky and South Carolina. Both phrases are variations on the whole ball of wax, first recorded in the 1880s.[3] They are part of a family of expressions in which an odd-sounding item, such as enchilada, shooting match, shebang or hog, is substituted for ball of wax.[3] The choice of the number nine may be related to the expression "To the nines" (to perfection).[nb 1]