For this I usually think of history facts and how we see different historical events as facts until the point we find some explicit contradiction that can't be ignored and look more into it, then historians just change history to fit that new piece of evidence. This means that a lot of historical events aren't actually explicitly true, just the most likely scenario based on what we know but we claim it as an objective truth. Adding to this, in order to add new evidence and information you might have to make a formal research and have it approved by some important people overseeing that field, if passed it gets seen as officially true, but there's plenty of academic papers that are seen as true but in later years get contradicted and the truth changes. Based on this, what we officially call an objective truth is just whatever the accepted and popular opinion is until otherwise contradicted by a more accepted and popular opinion.