Answer:
Breathing a mixture of nitrous oxide and oxygen through a mask helps you relax. Nitrous oxide numbs pain and induces a light-headed or pleasurable feeling throughout your body to help relieve anxiety. The sedation wears off quickly, so you can drive yourself home after your dental procedure.
Explanation:
Romulus and Remus, two twin brothers founded the city of Rome. However, the twins had an argument about where to start Rome. Romulus favored the Palatine Hill, but Remus favored the Aventine Hill.
They decided to settle the disagreement by asking the gods. Each brother stood on his respective hill. Remus saw six birds fly overhead, and Romulus saw twelve. However, Remus countered that he had seen the birds first.
Nonetheless, Romulus started to build a wall around his city. Then, Remus jumped over the wall as an insult to his brother. Angered, Romulus killed Remus. He regretted it, and took Remus to Amulius's palace, and buried him there.