Why is one singular and zero plural?

For example, when counting down apples, you would say "I have 2 apples", "I have 1 apple", and "I have 0 apples". This makes no sense to me, why would you use the plural form if you have none of something?
Update: The value zero, not the word "zero". You would also say "I have no apples" but the same problem is still there.
9 answers 9