![]() ![]() The abacus was invented in Babylonia in the 6th century BC. It was used by merchants and traders to help with their calculations. The Abacus was a manual, hand-operated calculator that was in use before the development of the modern day electronic calculator. The Russian abacus, also called the schoty, is a frame with beads strung on metal wires. The Japanese abacus, also called the soroban, is a wooden frame with beads strung on wires. The Chinese abacus, also called the suanpan, is a bamboo frame with beads strung on wires. It also sheds light on the administrative structure of the Achaemenid empire and the Persian king’s relations with the Greek city-states. The Salamis Tablet is an important historical document because it provides a firsthand account of the revolt by the Ionian Greeks and the response by the Achaemenid king Xerxes I. The decree orders the suppression of the revolt and the punishment of the rebels. 486-465 BC) in response to a revolt by the Ionian Greeks in 499 BC. The text is a copy of a decree issued by the Achaemenid king Xerxes I (r. The tablet is inscribed with a text in the Old Persian cuneiform script and is dated to around 480 BC. The Salamis Tablet is an ancient clay tablet that was discovered in 1846 on the Aegean island of Salamis. The abacus was originally used for arithmetic, but it was also used for other purposes such as accounting, navigation and surveying. It is a frame with beads sliding on wires. The abacus is a mathematical instrument that was in use in Europe, Asia and North Africa from antiquity until the seventeenth century. The abacus can be used to add and subtract numbers, as well as to multiply and divide. ![]() It is a frame with a series of beads that can be slid up and down on wires or rods. The abacus is an ancient calculating tool that is still used in some parts of the world today. ![]()
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