1.) its about "generational change" years we are able to enhance out studies and engange to more advance learning in discoveries
2.) socio-economic and environmental influences probabbly could affect (there are more and further explanation bout this)
3.) basically "past ideas" are the our main root of the principles and manners today so these ideas are not exactly different it is just innovated and enhanced
Well the canto ends with the poet talking about the value of fame and glory reached through great deeds.
3 is the answer to the question
Brown V. Board of Education was a landmark decision enacted by the US Supreme Court in 1954, that abolished segregation in public schools and understood that the 'separate but equal' principle that had governed such procedures was violating the Equal Protection Clause and therefore, unconstitutional. This clause was introduced by the 14th amendtment to the US Constitution during the Reconstruction Era, aiming to guarantee equality of rights to all US citizens.
This decision in 1954 overturned the former Plessy v. Ferguson decision from 1896, that had understood that the 'separate but equal' principle did not violate the Equal Protection clause and therefore it enabled segregation.
