After Kerry's third qualifying wound, he was entitled per Navy regulations to reassignment away from combat duties. Kerry's preferred choice for reassignment was as a military aide in Boston, New York or Washington, D.C. On April 11, 1969, he reported to the Brooklyn-based Atlantic Military Sea Transportation Service, where he would remain on active duty for the following year as a personal aide to an officer, Rear Admiral Walter Schlech. On January 1, 1970 Kerry was temporarily promoted to full Lieutenant. Kerry had agreed to an extension of his active duty obligation from December 1969 to August 1970 in order to perform Swift Boat duty. John Kerry was on active duty in the United States Navy from August 1966 until January 1970. He continued to serve in the Naval Reserve until February 1978.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did Kerry leave the Naval Reserve?
Ah, so.. February 1978

Along with secular matters, readers also favoured an alphabetical ordering scheme over cumbersome works arranged along thematic lines. The historian Charles Porset, commenting on alphabetization, has said that "as the zero degree of taxonomy, alphabetical order authorizes all reading strategies; in this respect it could be considered an emblem of the Enlightenment." For Porset, the avoidance of thematic and hierarchical systems thus allows free interpretation of the works and becomes an example of egalitarianism. Encyclopedias and dictionaries also became more popular during the Age of Reason as the number of educated consumers who could afford such texts began to multiply. In the later half of the 18th century, the number of dictionaries and encyclopedias published by decade increased from 63 between 1760 and 1769 to approximately 148 in the decade proceeding the French Revolution (17801789). Along with growth in numbers, dictionaries and encyclopedias also grew in length, often having multiple print runs that sometimes included in supplemented editions.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many dictionaries and encyclopedias were published in the decade preceding the French Revolution?
Ah, so.. 148

Howard differed from his Labor predecessor Paul Keating in that he supported traditional Australian institutions like the Monarchy in Australia, the commemoration of ANZAC Day and the design of the Australian flag, but like Keating he pursued privatisation of public utilities and the introduction of a broad based consumption tax (although Keating had dropped support for a GST by the time of his 1993 election victory). Howard's premiership coincided with Al Qaeda's 11 September attacks on the United States. The Howard Government invoked the ANZUS treaty in response to the attacks and supported America's campaigns in Afghanistan and Iraq.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did Keating's premiership coincide with?
Ah, so..
unanswerable