Innovations of ancient civilizations

In this humanities class we have studied Ancient Egypt Ancient Greece and Ancient Rome, which rose up in that order. Egyptian society and innovations influenced Greece, Greece made progression which influenced Rome which was the biggest empire of them all. You must choose an innovation from one of these societies and explain its impact on the civilization that created it as well as the long term affects and how it Impacts us presently.
The professor also gives examples in the materials provided you are more than welcome to use one of those because they are topicixcs we covered in class.