Today, because of tests conducted by researchers, we know a lot about ancient Egyptians through their mummies-for example, whether they died from illness or injury. We have also learned about people of the past through things buried with them. For example, the king of ancient Egypt lived very luxurious lives. So when a tomb is found filled with treasure, archeologists can quickly rule out the possibility that the tomb belonged to a poor person. Though ancient tombs are often very vulnerable to grave robbing, many of kings’ tombs were hidden, so their treasures can tell us about how they lived.