I can hear Brahmagupta, the great Hindu mathematician sitting at his desk, working on a mathematical calculation talking to himself, looking at nothing thinking he should give it a number.
"I think I'll call this empty space Zero," Brahmagupta said.
Everyone stopping work, dropping their jaws, scratching their heads contemplating the implications of such a momentous and earth-shattering statement. One man sitting at a back desk almost faints, another man standing, raises his arms in protest yelling, "Blasphemy!"
Mathematicians say the invention of nothing or zero is one of the greatest discoveries in all of mathematical history, first used in the 3rd century, re-used by the Mayan's then abandoned until it was reinvented in the 12th century in India and brought to Europe.
Before it was re-invented mathematicians used the blank space to calculate equations as if the blank space meant nothing.
In recorded history, the creation of Zero was the last number created, no other number has been created since—at least the ones we use every day—and ironically is always placed at the beginning of a count, unless you are counting down, then zero is always placed last.
ref: Who Invented It?