Occasionally you will find Disneyland cel set-ups that have a cel from one film and a background from another. For example it is common to see a Jungle Book cel on a litho of a Sleeping Beauty background. These are also referred to as Disneyland Art Corner cels.
Important note: ISBN numbers were introduced in 1970. Any book printed before 1970 will not have an assigned ISBN. Why Search by ISBN. ISBNs are useful when looking for a specific printing of a book. A student, for example, can search by ISBN to find the correct edition of a textbook for school.
Numbers' & Numeral systems' history and curiosities. Today's numbers, also called Hindu-Arabic numbers, are a combination of just 10 symbols or digits: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0. These digits were introduced in Europe within the XII century by Leonardo Pisano (aka Fibonacci), an Italian mathematician. L.