Since no one left a comment, can you tell me why would you think people are closing my question, "Is there a blog engine/platform that can display revision history?". I'm just surprised, for I don't see any lack of legitimacy.
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Um... it's a bit on the broad side?
If you're looking for an installable product, you need to add some metrics - programming language, platform.... If you're looking for a hosted web app, it's more suitable for
It's not a programming problem or about a software algorithm or about a software tool used for programming or a programming unique matter, as per the FAQ:
Your question was probably more appropriate for Meta or Webapps.