Timeline Help: Order you put BC's in?HELPP PLEASEE?

I am making a timeline that has BC dates in it. Do u put the higher date closest to the BC or farther away since BCs go higher number to lower number. for example u have 2oo BC 300 BC 400 BC etc. and u have the number 495 BC would u put that rite after the 400 BC since u go from higer number to lower number? or would u put it at the end even though tht would make ur timeline not in order.... I AM REallY CONFUSED HELP please!!