Like music and fashion trends, the popularity of baby names is constantly shifting. When every parent wants their child to be unique, names that were once considered obscure become commonplace. That's how old-fashioned names like Charlotte, Oliver, Violet, and Theodore topped baby names lists in 2020. According MyHeritage, these are the boys' and girls' baby names at the biggest risk of decline in the coming years. Here are the most distinctive baby names for each of the past seven generations.