The research team figured out the percentage of babies given the most popular name or a name among the 10, 20, or 50 most popular for that year and sex.
Since it wasn’t required that people get a social security card until 1937, names before that time may not be random samples of the population, the researchers note.
Results showed parents were less likely to choose those popular names as time went on. For instance, in the late 1800s and early 1900s, about 5 percent of babies were named the top common name, while more recently that dropped to 1 percent.
About 40 percent of boys received one of the 10 most common names in the 1880s, while now fewer than 10 percent do.
For girls, the percentage with a top-10 name dropped from 25 percent in about 1945 to 8 percent in 2007.
Similar results were seen for the top-50 names. About half of girls received one of the 50 most popular names until the mid-20th century. Now, just one in four have these names.
Read the complete article at: livescience.com