In 1671, Robert Boyle discovered and described the reaction between iron filings and dilute acids, which results in the production of hydrogen gas. In 1766, Henry Cavendish was the first to recognize hydrogen gas as a discrete substance, by naming the gas from a metal-acid reaction "flammable air". He speculated that "flammable air" was in fact identical to the hypothetical substance called "phlogiston" and further finding in 1781 that the gas produces water when burned. He is usually given credit for its discovery as an element. In 1783, Antoine Lavoisier gave the element the name hydrogen (from the Greek ὑδρο- hydro meaning "water" and -γενής genes meaning "creator") when he and Laplace reproduced Cavendish's finding that water is produced when hydrogen is burned.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What year was the discovery of hydrogen gas?
Ah, so.. 1671

Northwestern's football team has made 73 appearances in the top 10 of the AP poll since 1936 (including 5 at #1) and has won eight Big Ten conference championships since 1903. At one time, Northwestern had the longest losing streak in Division I-A, losing 34 consecutive games between 1979 and 1982. They did not appear in a bowl game after 1949 until the 1996 Rose Bowl. The team did not win a bowl since the 1949 Rose Bowl until the 2013 Gator Bowl. Following the sudden death of football coach Randy Walker in 2006, 31-year-old former All-American Northwestern linebacker Pat Fitzgerald assumed the position, becoming the youngest Division I FBS coach at the time.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was the first bowl won by Northwestern after the 1949 Rose Bowl?
Ah, so.. 2013 Gator Bowl

The Portuguese currency is the euro (€), which replaced the Portuguese Escudo, and the country was one of the original member states of the eurozone. Portugal's central bank is the Banco de Portugal, an integral part of the European System of Central Banks. Most industries, businesses and financial institutions are concentrated in the Lisbon and Porto metropolitan areas—the Setúbal, Aveiro, Braga, Coimbra and Leiria districts are the biggest economic centres outside these two main areas.[citation needed] According to World Travel Awards, Portugal is the Europe's Leading Golf Destination 2012 and 2013.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): According to World Travel Awards, for what activity is Portugal known as Europe's leading destination?
Ah, so..
Golf