All chivalry ever actually said was, to quote Mel Brooks, "F*ck the poor!" Read the tales of Don Quixote de la Mancha if you want to see how stupid the whole system was (which, btw, was Cervantes' point)... It has nothing to do with being polite to women. In fact, it was, occasionally, the opposite...
Elvis is dead (not that much of a song writer, but a hell of a performer), Jer-Bear (interesting guy), John Lennon (a hack) and and Biggie Smalls are dead. That is all.
I think English literature died when an entitled rich kid walking around NYC complaining about "phonies" which surprisingly resemble the "protagonist" (not that there was really an antagonist, or anything) was lauded as a great work of said English literature.
Leica, Kodak, film, rangefinders et al. are not dead. By the frequency of new threads to the contrary, I am sure common sense is dead, however.