Shortly after the explosion in the Klingon-Romulan compound, Worf climbs over the wall to attempt an escape. As he does so, the top of the wall gives slightly, belying the stone from which it is supposed to be made.
Worf states that the Klingons and Romulans have been "blood enemies" for centuries; however, this series takes place barely a century after Star Trek (1966), where the Klingons and Romulans were allies. However, this could be because Americans tend to use only the simple past tense and not the pluperfect (past perfect) tense. If Worf had used it, he would have said the more precise (and accurate) "had been" rather than "have been".
Worf makes a threefold error while relating the story of Kahless and his father's sword. He claims that Kahless began to weep into the 'sea.' Moments later, he calls it an 'ocean' instead. He goes on to say that the tears of Kahless caused the waters to overflow. While this may be just a simple fable, it is quite obviously impossible, both medically and scientifically for any creature to produce more bodily fluid than their own body weight. And lastly, Worf's story makes even less sense as it was revealed by Spock (Leonard Nimoy) in Star Trek VI: The Undiscovered Country (1991) that "Klingons have no tear ducts."
Picard switches two digits when reading the star date in his first Captain's Log entry, which emerges as 46759 rather than 46579.