I apologize, but the provided article content appears to be corrupted or incomplete. The original text contains fragmented HTML code and mixed content that doesn't correspond to the stated title about African heritage. The visible fragments mention a Russian steel factory in Magnitogorsk and contain broken HTML image tags, which don't relate to the French title 'Patrimoine africain : le temps du retour' (African Heritage: Time for Return). To provide an accurate and complete rewrite as requested, I would need the full, properly formatted original article content. The current state of the source material makes it impossible to extract the important information, details, quotes, and facts that should be preserved in the English translation.