Zero

All numbers are represented with 10 digits (0,1,2,....9) using a positional system. A number system in which the value of a digit depends on its position. For example,
 1+1 = 2  ====> one +one =two
11+1 = 12  ===> eleven +two = twelve

Even though those equations are only represented by two different numbers, 1 and 2, depending on the place of the digit changes the value of the characters.

The Babylonians were the first to invent a positional system and in the case of a value was "empty" a blank space was used. Around 300 BC they developed a symbol to denote an empty place value:

For now we will regard a value that is empty as zero.
There are two ways to use zero

1. Placeholder (which is what the Babylonians and the Mayans considered zero as)
2. Number (India)

Any interesting fact is that the Babylonians never "discovered" zero as a number. It wasn't until around 458AD Zero become know as a number.

A funny video about zero that my classmate and i enjoyed:

Unanswered Question:

1. How exactly did zero go from a place value to an actual number?

Evaluation:
Interesting: 8
Complexity: 5
Quality:7