Pearl states to Damon that she has 400 years on him. In a previous episode (Ep.14- Fool me once) Damon and Anna (Pearls Daughter) grabbed one another's throat and it was clear that they were of equal strength. Since Vampires can't reproduce, Anna would've had to been born before Pearl was turned and should also be about 400 hundred years older and therefore much stronger than Damon. Except, in this case, being Pearl's daughter just means that Pearl was the one who turned her. Therefore, Anna is about the same age as Damon.