The line graphs illustrate the trends in the popularity of three specific boys’ names (Daniel, Oliver, and Alexander) and three girls’ names (Sophia, Isabella, and Emily) between 1925 and 2000.
Overall, it is evident that all the names featured in the graphs saw a significant surge in popularity towards the end of the period, specifically after 1975. While “Daniel” was the most popular name for much of the 20th century, the girls’ names started from nearly zero popularity before 1975.
In 1925, “Daniel” was already relatively popular at approximately 4 per thousand, and its popularity grew steadily to a peak of 12 per thousand by 1975. In contrast, “Oliver” and “Alexander” remained at very low levels (under 2 per thousand) until 1975. However, between 1975 and 2000, “Oliver” and “Alexander” saw a dramatic increase, reaching around 10 to 11 per thousand, while the popularity of “Daniel” slightly declined.
Regarding girls’ names, “Emily” was the only name with any notable popularity before 1975, though it remained under 4 per thousand. Both “Sophia” and “Isabella” were virtually unused until 1975. Following this point, all three names experienced an explosive increase. By the year 2000, “Emily” and “Sophia” had both reached roughly 11 per thousand, with “Isabella” following closely at around 9 per thousand.