When did Romulus kill Remus?

K this is d story: 2 abandoned boys were nursed and raised by a wolf. When it was time to go on, they set out. The encountered hills and decided to raise a city, but neither of them could decide who would be king of the new city. romulus stood on one hill, and remus on another. one day, 6 vultures flew over remus' head. They decided that remus would become king of the new land. Just as remus was about to be crowned, 12 vultures flew over romulus, making him the king. Rome was named after Romulus. the jelous remus came over to the walled city of Rome. He told his brother "ha! wat kind of so called 'city' is this? anyone could easily climb over this stupid city!" Romulus replied "Well this is what my city will do to anyone who does climb over the wall!" and kills his brother.

the bold is the answer ur looking 4. d rest is just d background.

Acknowledgements: My buddy Miles 4 telling d story in class