What did the letters in the name of the SAT college admission test originally stand for?

Which old-fashioned word describes an impertinent young person, as in "you young ___"? What nickname is given to a nation's most important cereal-growing region? Which important commercial route to New Mexico was started in 1821? Which city, now Georgia's capital, was a key Confederate supply depot that surrendered to Union troops on September 2,… The hominid skull coded KNM-ER 1470 has the initials "KNM" for the National Museums of which African country? Which French phrase describes an impressive display of power or skill? Which JFK book about eight courageous U.S. senators won the 1957 Pulitzer Prize for Biography? Which independent European country covers only about 109 acres?