Most people now Pompeii as a city that was destroyed but we also learned stuff about it. We've learned that most of the population were freed slaves and that they had laws and religions like we do in modern time. We've learned that Romans leave things un repaired because there were still buildings broken down from an earthquake just a couple of months before the event. Archaeologist and scientists exchanged information with each other. Everything was so perfectly preserved debris of the people was like a fossil with only a little of decade bones and ash. They also had their own form of social media and graffiti as shown below.