1. In March 1920 the US Senate finally killed the treaty. The United States did not ratify the Treaty of Versailles and we did not join the League of Nations. Wilson considered this a great failure and it plagued him until his death. Disgust was deepening.
Part of the Peripherals glossary: An abacus is a manual aid to calculating that consists of beads or disks that can be moved up and down on a series of sticks or strings within a usually wooden frame. The abacus itself doesn't calculate; it's simply a device for helping a human being to calculate by remembering what has been counted. The modern Chinese abacus, which is still widely used in China and other countries, dates from about 1200 A.D.
The Roman hand abacus had a lower groove which represents units and the beads in the upper grooves were in fives such that five units, five tens and so on. The groove values were marked by roman numerals.This was designed to bi-quinary coded decimal system.his counting board was the Roman hand abacus. Structure of Roman Abacus. The Roman Abacus was made of metal plate and this was where the beads ran in slots. The size of the abacus was such that it can fit into the pocket of a modern shirt.