What were the names of the Bobbsey Twins?

There were two sets of twins: Bert and Nan and their younger siblings, Freddie and Flossie.

The series about them began with The Bobbsey Twins (1904) by Laura Lee Hope.

Who invented the golliwog? The golliwog, a type of doll known as "the blackest gnome," was invented by Florence K. Upton in The Adventures of Two Dutch Dolls and a "Golliwog" (1895). More golliwog tales followed until…
Is there any bone in the body that does not connect with other bones? The hyoid bone resides by itself in the throat and does not connect with other bones. It supports the tongue and its muscles.
Who wrote “Candy is dandy But liquor is quicker”? Ogden Nash wrote the ditty in 1931. In 1968, he updated it: Candy is dandy But liquor is quicker. Pot is not.
What was Hiawatha’s tribe? The hero of Longfellow's Song of Hiawatha (1855) belonged to the Mohawk tribe, one of the Five Nations of the Iroquois.
Which Brontë sister wrote Wuthering Heights and which one wrote Jane Eyre? Charlotte Bronte, the most famous of the Bronte sisters, wrote Jane Eyre in 1847. Emily Bronte, whose work is notable for its spirit of passion and rebellion, wrote Wuthering Heights in 1848.
What classical writer was the first to record the story about the runner who ran from Marathon to Athens, and then died? The classical writer who was the first to record the story about the runner who ran from Marathon to Athens, and then died was Lucian of Samosata, a writer of satirical essays of…