This means that this particular woman is currently in her second pregnancy and that the previous pregnancy was either spontaneously or electively aborted. There is an acronym to help understand this... GTPAL. G - The number of times the woman has been pregnant, including current pregnancy.
The Ancient Romans developed the Roman hand abacus, a portable, but less capable, base-10 version of the previous Babylonian abacus. It was the first portable calculating device for engineers, merchants and presumably tax collectors.he name semuncia denotes 1/2 of an uncia or 1/24 of the base unit, the As. Likewise, the next character is that used to indicate a sicilicus or 1/48 of an As, which is 1/4 of an uncia. These two characters are to be found in the table of Roman fractions on page 75 of Graham Flegg's book.
Best Answer: The first abacus has been dated to the sixth century BC and about 200 years after it was used by the Chinese, the abacus caught on in several Mediterranean civilizations. But it is quite a controversial matter. The first record of the abacus was from a sketch of one in a book from the Chinese Yuan Dynasty (14th Century). If the abacus was invented by the Chinese in the sixth century BC then there is no definite answer to the question since the first official whole Chinese dynasty was the Qin Dynasty in 221 BC. This website has a fascinating account of the history of the abacus and other counting devices.