100 Baby Challenge

Ada is one of the classic baby names for girls that is suddenly super stylish again. A favorite at the end of the nineteenth century, Ada is an alternative to the over-popular Ava. Ada is also part of the trend toward simple, old-fashioned names beginning with a vowel, like Ivy and Ella.

This diminutive, similar to Alex or Alexis, has been yo-yoing in popularity since the turn of the 21st century.

Arabella, lovely and elegant, has long been well used in Britain and finally made it onto the American list in 2005. Its meaning may also be interpreted as "beautiful," thanks to -bella.

Billie is a tomboy nickname name, part of the growing trend for using boyish nicknames for girls and now destined for stardom along with its most famous contemporary bearer, music sensation Billie Eilish.

Delphine is a sleek, chic French name with two nature associations — the dolphin and the delphinium, a bluebell-like flower, a well as a link to the ancient city of Delphi, which the Greeks believed to be the womb of the earth. All of these derive from the Greek word delphus "womb".

Devon, spelled like the lovely seaside county in Britain that inspired the name, has crashed since its heyday around the Top 100 in the 1990s. Despite its use as a female name, for example for Devon on the TV show The 4400, Devon continues to be far more popular for boys than for girls.

One of the first of the appealing Irish surnames to take off in this country, this boys’ name has long outgrown its "Mellow Yellow" association, which came via the single from a sixties singer-songwriter named Donovan.

Elizabeth is one of the most popular girls' names of all time, the female equivalent of James or William. Yet Elizabeth has so much going for it—rich history, broad appeal, and timeless style—that no matter how many little girls are named Lizzie, Eliza, and Beth, you can still make Elizabeth your own.

Ezra has a lot going for it: the strength of its heroic Biblical legacy, its quirky sound, and its fresh but familiar feel. Ezra is now at its highest point ever, but its intuitive streamlined spelling and deep roots could make it a worth successor to Elijah in the Top 10 -- or even to Liam or Noah at Number 1.

Isaiah, like brethren Isaac and Elijah, is a once neglected biblical name now firmly back in favor, already surpassing such long-popular Old Testament stalwarts as Aaron and Adam. Isaiah has ranked on the US Top 1000 list for boys every year but two, 1969 and 1970.

The boyish spelling, which is still pronounced with two syllables and a long e at the end, is sometimes used for girls, though the Jessie form -- whether short for Jessica or standing on its own, is usually considered the feminine one.

Joseph is one of the most classic names in American nomenclature, popular with parents from many ethnic backgrounds and having dual-religious appeal.

A "modernization" of Leonora that has suddenly come back on the radar along with the many other Leo names--both male and female. With literary cred via a famous eponymous poem by Edgar Allan Poe (and also in his even more famous The Raven,) Lenore was steadily in the top half of the popularity list until the mid-fifties, falling off in 1973. Cameron Diaz played a Lenore in The Green Hornet.

The related Lucas and Luke are both hugely popular boy names in the US and internationally, and now Luca has joined them on boys' popularity lists around the world.

German philosopher and revolutionary socialist Karl Marx will be most people's immediate association with this uncommon name. The author of The Communist Manifesto and Das Kapital is widely considered to be the father of international communism.

For every Tio Salvador in a Latino family, there's a Zio Salvatore in an Italian one. Having always ranked in the US Top 1000, it is in danger of falling off the charts very soon.

The origins of Samantha are not entirely clear, although it is commonly thought to be a feminization of Samuel with the suffix derived from the Greek anthos, meaning "flower." Samantha has been in English-speaking use since the eighteenth century, particularly in the American South, and drew attention via Grace Kelly's Tracy Samantha Lord character in High Society, featuring the song "I love you, Samantha."

Seraphina is one of the most-searched name on Nameberry, destined for even greater popularity. The highest-ranking angels, the six-winged seraphim, inspired the lovely name Seraphina.