• It was called"nothing". The first evidence we have of zero is from the Sumerian culture in Mesopotamia, some 5,000 years ago. There, a slanted double wedge was inserted between cuneiform symbols for numbers, written positionally, to indicate the absence of a number in a place (as we would write 102, the '0' indicating no digit in the tens column).
  • People used abacus
    • Linda Joy
      That was going to be my guess!
  • Aye. Aye-aye. Aye, aye-aye. Ivy. Vee. Vee, aye. Vee, aye-aye. Vee, aye, aye-aye. Ayicks. Ex. Ex-eye. Ex-private-eye. Ex-CIA. Emil Alex vee aye-aye. Oh, gotta go, it's aye-aye aye-aye o'clock.
    • Linda Joy

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