Thumbling and Thumbling's Travels (also known as Thumbling as Journeyman) are two German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 fairy tale

Fairy tale

A fairy tale is a type of short story that typically features such folkloric characters, such as fairies, goblins, elves, trolls, dwarves, giants or gnomes, and usually magic or enchantments. However, only a small number of the stories refer to fairies...

s collected by the Brothers Grimm

Brothers Grimm

The Brothers Grimm , Jacob Grimm and Wilhelm Grimm , were German academics, linguists, cultural researchers, and authors who collected folklore and published several collections of it as Grimm's Fairy Tales, which became very popular...

. They are tales number 37 and 45 in the collection

Grimm's Fairy Tales

Children's and Household Tales is a collection of German origin fairy tales first published in 1812 by Jacob and Wilhelm Grimm, the Brothers Grimm. The collection is commonly known today as Grimms' Fairy Tales .-Composition:...

 and are related to the English Tom Thumb

Tom Thumb

Tom Thumb is a character of English folklore. The History of Tom Thumb was published in 1621, and has the distinction of being the first fairy tale printed in English. Tom is no bigger than his father's thumb, and his adventures include being swallowed by a cow, tangling with giants, and becoming a...

, whose title the Grimms' stories often share when translated into English.

It is Aarne-Thompson type 700, Tom Thumb.
In the first story, Thumbling, a poor childless peasant couple wishes for a child "no matter how small" aloud.