**Some updates after exploring the functions provided by Wikipedia API

How to get content by revision:

-> Get data with content for the last revision of titles API and Main Page. action=query, prop=revisions https://i.imgur.com/3kUD5AM.png

results: https://i.imgur.com/3zcD1Cr.png

other examples: https://www.mediawiki.org/w/api.php?action=help&modules=query%2Brevisions

-> Compare two revisions from the same page action=compare, prop=diff,diffsize https://www.mediawiki.org/wiki/API:Compare

results: https://i.imgur.com/nS7XhwY.png