Question: when was zero first used in mathematical operations?
Evidence: Around 1200 AD, Italian mathematician Fibonacci introduced zero in Europe. Initially, zero was called 'Sunya' in India, it was called 'Sifr' in the middle east when it reached Italy, it was named 'Zefero' and later in English, it was called 'Zero'.
Answer: 7th century
By 1770 BC