ZUQ: Alvin McDonald's Initials Encoder uses the same algorithm that cave explorer Alvin McDonald used to come up with his signature initials ZUQ, which he used to identify himself while exploring South Dakota's Wind Cave between 1889 and 1893.
For a long time his algorithm remained a mystery, with the only hint appearing in a post script from a journal entry dated Janurary 1, 1892.
For the meaning of these initials or any other initials used in the pages of this book, inquire of the guide of any of the Celebrated Caverns of America.
Thankfully, the algorithm was eventually discovered and now everyone can enjoy figuring out their own encoded initials.
From the age of 16 until his death at the age of 20, Alvin discovered and mapped 8 to 10 miles (13 to 16 kilometers) of the cave by candlelight. His exploration and mapping was so extensive and thorough for the time that it was not until 1963, 70 years after Alvin's death, that major new passageways were discovered in Wind Cave.
We'd love to hear from you.