It started as a simple mathematical problem discovered in the book 365 Exercises for the Mind, by Pierre Berloquin.
Find seven words which appear consecutively in the given word industrialization. The solution to the problem identifies the seven words as in, dust, trial, at, on, rial, and ion.
"My Visit to Grant's Tome,"
Word Ways: Vol. 40
, Article 14.
Available at: http://digitalcommons.butler.edu/wordways/vol40/iss3/14