Counting Invention Before the Calculator

This page is the CodyCross answer for the clue below from Larger than Life, Group 2146, Puzzle 1 (Billboard Signs).

Question

Counting Invention Before the Calculator

Answer

ABACUS

Word Meaning:

ABACUS — (historical, obsolete) A table or tray scattered with sand which was used for calculating or drawing.

Definitions from Wiktionary.

Counting invention before the calculator Larger than Life Answers