Here is a brief history of Zero.

Numbers were
used for thousands of years before they used zero. Egyptian hieroglyphics were used as early as 3500 B.C. Egypt did not have - or need - a zero. Even without zero,
Egyptians became masters of mathematics.

The
Greeks brought mathematics to its highest point in ancient times. Around 500
BC, the Greeks developed a newer more sophisticated system which avoided
repeated letters, but both the Egyptian and Greek number systems still had no
zeros.

And yes, the symbol for 80 is Pi |

In 2500
B.C., the Babylonians started to use Base 60 (which is why there are 60 seconds in a minute, and 60
minutes in an hour). They sometimes used a space to represent
an empty position. By about 200 A.D., they used a pair of
small triangles to represent an empty position. Although the Babylonians never actually invented
a zero, they did make the important first step.

Hindu
culture had a positional number system in base ten. They
used a dot to represent an empty place, and was called ‘Sunya’ which meant empty. At this point,
the early zero was a placeholder and an aid in calculation. By 500 A.D., the Hindus use a small circle to represent Zero, and was recognized
as a numeral.

Arabic people recognized the value of the
Hindu system and adapted the numerals and calculations. Word then spread the ideas in their
travels The zero was named with the Arabic word ‘sifz’. Fibonacci, after learning
Hindu-Arabic numerals from his Arabic tutors, brought news of zero and new computational
methods to Europe.

Europeans resisted Hindu-Arabic numerals. At first, the numerals, including zero, were not accepted, even to the
point where Florence, Italy, passed a law prohibiting
the use of the numerals. Slowly, the numbers became accepted

*In the history of culture the discovery of zero will always stand out as one of the greatest single achievements of the human race.*

*-Tobias Danzig*

Zero is the number that separates positive numbers from negative
numbers

**It’s even***.***it’s the integer that precedes one. Happy A to Z Blogging Challenge!***,*