Re: So sad
'[H]opeless for Agincourt unless you are a medieval historian'?
I attended a comprehensive school in the 1970s, a school which had been a 'secondary modern' - for people who had 'failed' the 11-plus exam. In my local authority area, the 11-plus and grammar schools had been done away with - all schools were comprehensives, so attendance was based upon catchment areas.
The fact that it had been a secondary modern - with all the legacy teaching staff - didn't put paid to history lessons. As recently as the 1970s, therefore, ALL pupils, whether they went on to do CSE Metalwork or GCE O Levels in English Language, Mathematics and Physics etc, or no examination subjects at all - learnt about English mediaeval history between the ages of 13 and 14 and before streaming took place for the final two years of schooling.
What your comment appears to reflect, then, is the sad fact that in modern schools, only 'relevant' subjects are 'taught', giving us several generations of adults now who are all but illiterate in any matter other than that which enables them to earn their dough.
[Checked with a paper dictionary before submission!]