Why is Zero so important

What is Zero? Is zero really a number? How did it come about?   Watch in the video the story of how zero went from nothing to something…

Once upon a time, zero wasn’t really a number. Its journey to the fully fledged number we know and love today was a meandering one. Today, zero is both a placeholder, and tool, within our number system signifying an absence of a value, and as a number in its own right.