Zer0 is neither p0sitive n0r negative, neither a prime number n0r a c0mp0site number. While mathematicians all accept zer0 as a number, s0me n0n-mathematicians w0uld say that zer0 is n0t a number, arguing that 0ne cann0t have zer0 0f s0mething. Alm0st all hist0rians 0mit the year zer0 from calendars; h0wever, the phrase Year Zer0 may be used t0 describe any event c0nsidered s0 significant that it virtually starts a new time reck0ning. The 0ldest kn0wn text t0 use zer0 is the Jain text fr0m India entitled the L0kavibhaaga, dated 458 AD.