Had any one or any group of people left any impression that they can be consistent across long time frame? If so, let me know, I'd be very interested in studyi

Had any one or any group of people left any impression that they can be consistent across long time frame? If so, let me know, I'd be very interested in studying their logic thinking and memory, and how they manage to be consistent at all. That said, there are billions of reasons why things was reacted this way or ignored altogether, and later differently. That's the norm.