Mesopotamia - cuneiform.
If that is what you meant.
This is false. They wanted to conduct a scientific investigation of great depths and find out more of what lies in the oceans. They traveled while probing depths to see what lies beneath and discovered thousands of new species that were undocumented before because there was no technology to leave shallow water.
He doubled the size of the empire and ruled much of the Mediterranean world.
He created a code of law that helped unite the Byzantine Empire and later served as a model for the codes of law in many modern nations.
He built a huge domed cathedral called the Hagia Sophia, an enormous underground aqueduct, and a fabulous palace complex.
those are the answers for K12, OHVA to be exact