Chinese Abacus. The abacus is first known in China from the Northern Song dynasty through the work of Shao Yong (1011-1077). Like many early inventions it is not clear precisely where it originally came from. Some say Central Asia; some Asia Minor and others China.
Snag(noun) a stump or base of a branch that has been lopped off; a short branch, or a sharp or rough branch; a knot; a protuberance. Snag(noun) a tooth projecting beyond the rest; contemptuously, a broken or decayed tooth.
n.) of Snag. Found on http://thinkexist.com/dictionary/meaning/snagging/. Snagging, also known as snag fishing, snatch fishing, or foul hooking, is a method of fishing that entails catching a fish using hooks without the fish having to take the bait with their mouth.nagging, also known as snag fishing, snatch fishing, or foul hooking, is a method of fishing that entails catching a fish using hooks without the fish having to take the bait with their mouth.