No calculator? Use your fingers- and toes, if needed. Right? Well, you would be accessing the deep recesses of your genetic history to count the ways the ancients did. Because humans typically have 10 digits, most counting systems, even today, use 10 as its base. But let’s not jump ahead! There’s a long history behind counting.
The development of writing and counting are very closely connected, and both evolved from the growth of agriculture as civilization flourished. Because of the blossoming of trade and other commercial transactions based on agriculture, methods of record-keeping were needed. But coming up with the notion of numerals didn’t just appear overnight.