"However does not -2 + 2 = 0." You got me! So when we get to 4004 AD, then thats the end of time, because the amount of time between 4004BC (the creation date) plus 4004AD = zero! All of time cancels itself out! ;-) philip madsen <pma15027@xxxxxxxxxxxxxx> wrote: I have simply pointed out that when two time periods, that span the BC/AD divide, can be added together to get the total number of years, if you are including the beginning of the BC year and the end of the AD year. JA I agree.. 2BC to 2AD is 4 years. I just wondered why you introduced a zero..I now realize it is just a mathmatical point to separate a negative and positive quantity.. However does not -2 + 2 = 0. Philip. --------------------------------- Bored stiff? Loosen up... Download and play hundreds of games for free on Yahoo! Games.