The abacus was a great invention in ancient China and has been called by some Western writers the earliest calculating machine in the world. The abacus has a long history behind it. It was already mentioned in a book of the Eastern Han Dynasty, namely Supplementary Notes on the Art of Figures written by Xu Yue about the year 190 A. D.
Subordination and Non Disturbance Agreements, commonly referred to as âSNDAs,â are typically an agreement between a tenant, a landlord and the landlordâs lender.
The âMeansâ is the activity a subject engages in with the intention of bringing about a certain âEnd.â The âEndâ has initially only an ideal existence, and the Realised End â the actual outcome of the adopted Means â may be quite different from the abstract End for which the Means was adopted in the first place.