Answer:
1) Hammurabi’s Code is important because it’s a very early written law code, from about 1700 BC, and we have good copies of it so we really know most of what it said. There are earlier law codes (from Ebla, for example), but we only have small pieces of them.
2) Because a law code deals with a lot of different aspects of ordinary people’s lives, it helps us to understand what ordinary people’s lives were like in the time of the Babylonians. So the Code of Hammurabi is important to historians.
3) The codes regulated trade, business, and social relationships in Babylon. It also teaches us about Mesopotamina society such as their class divisions and political economic factors. Hammurabi's code was a very modern concept for this time and has influenced all the populations since then.