I forget when events I was a part of happened all the time. For him to misremember by a few months something that happened more-than-my-lifetime ago seems pretty reasonable to me.
This seems to happen even more when an event is a part of your life narrative. Like I regularly hear friends and family members reshape events of their life as they're telling stories. Uncomfortable fact but our memories are really unreliable, and as we retell stories to ourselves and people we know they often get changed with time. It's probably not worth obsessing over when politicians do it with their own life stories (though obviously important with historic narratives).
I forget when events I was a part of happened all the time. For him to misremember by a few months something that happened more-than-my-lifetime ago seems pretty reasonable to me.
This seems to happen even more when an event is a part of your life narrative. Like I regularly hear friends and family members reshape events of their life as they're telling stories. Uncomfortable fact but our memories are really unreliable, and as we retell stories to ourselves and people we know they often get changed with time. It's probably not worth obsessing over when politicians do it with their own life stories (though obviously important with historic narratives).