who invented zero?

Answer 1

The nr. zero was invented independently in India and
by the Maya. In India a decimal system was used, like
ours, but they used an empty space for zero up to 3rd
Century BC. This was confusing for an empty space was
also used to separate numbers, and so they invented
the dot for a zero. The first evidence for the use of
the symbol that we now know as zero stems from the 7th
century AD. The Maya invented the number zero for
their calendars in the 3rd century AD.
The number zero reached European civilisation through
the Arabs after 800 AD. The Greek and Roman did not
need the number zero for they did their calculations
on an abacus. The name 'zero' comes from the arabic
'sifr'.
(Data from the book "the calender" by D. E. Duncan).

Answer 2

Zero, or nothing, has alway been around. Nobody "invented" it.

The symbol of zeroness in our math is from Arabia. They did not invent the concept, just discover and began using a symbol for it.

Answer 3

Early use of something like zero by the Indian scholar Pingala (circa 5th-2nd century BC), implied at first glance by his use of binary numbers, is only the modern binary representation using 0 and 1 applied to Pingala's binary system, which used short and long syllables (the latter equal in length to two short syllables), making it similar to Morse code. Nevertheless, he and other Indian scholars at the time used the Sanskrit word śūnya (the origin of the word zero after a series of transliterations and a literal translation) to refer to zero or void.

Answer 4

Arabians discovered zero...

Answer 5

The Arabs in the 11th century.
http://www.arabicnews.com/ansub/Daily/Day/980422/1998042208.html

Answer 6

aryabhatta