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.
The abacus, called Suan-Pan in Chinese, as it appears today, was first chronicled circa 1200 C.E. in China. The device was made of wood with metal re-inforcements. On each rod, the classic Chinese abacus has 2 beads on the upper deck and 5 on the lower deck; such an abacus is also referred to as a 2/5 abacus.The 2/5 style survived unchanged until circa 1850 at which time the 1/5 (one bead on the top deck and five beads on the bottom deck) abacus appeared.n each rod, the classic Chinese abacus has 2 beads on the upper deck and 5 on the lower deck; such an abacus is also referred to as a 2/5 abacus. The 2/5 style survived unchanged until circa 1850 at which time the 1/5 (one bead on the top deck and five beads on the bottom deck) abacus appeared.