Roman abacus Directory References Discover 6 Small Kingdoms of the World Where Did the Moon Come From? Was Martin Luther King, Jr., a Republican or a Democrat? 9 Animals That Look Like Leaves 9 of the World’s Deadliest Mammals What Is an Executive Order? Pablo Escobar: 8 Interesting Facts About the King of Cocaine Contents Roman abacus calculating device Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:description In abacusIn the Roman abacus the board was given grooves to facilitate moving the counters in the proper files. Another form, common today, has the counters strung on wires.Read More
