Copyright status of The Wizard of Oz and related works in the United States
"The Wonderful Wizard of Oz" was published in 1900, and was the first to enter the public domain in "1956". This allowed Reilly & Lee, the publisher of all the other Oz books (as well as Baum's other books) to issue their own edition of "The Wizard of Oz", which had previously been published by George M. Hill Company and later by the Bobbs Merill Company after Hill went bankrupt..
The Wonderful Wizard of Oz
"The Wonderful Wizard of Oz" has become an established part of multiple cultures, spreading from its early young American readership to becoming known throughout the world. It has been translated or adapted into well over fifty languages, at times being modified in local variations. For instance, in some abridged Indian editions, the Tin Woodman was replaced with a horse. In Russia, a translation by Alexander Melentyevich Volkov produced six books, "The Wizard of the Emerald City" series, which became progressively distanced from the Baum version, as Ellie and her dog Totoshka travel throughout the Magic Land. The 1939 film adaptation has become a classic of popular culture, shown annually on American television from 1959 to 1991 and then several times a year every year beginning in 1999. More recently, the story has become an American stage production with an all-black cast, set in the context of modern African-American culture.