Sometimes people just can't think of a better term and it sticks. It makes sense if there's some ordering implied but in quite a few of these there's none: htt

Sometimes people just can't think of a better term and it sticks. It makes sense if there's some ordering implied but in quite a few of these there's none: https://en.wikipedia.org/wiki/Type_1 https://en.wikipedia.org/wiki/Type_1 https://en.wikipedia.org/wiki/Type_2 https://en.wikipedia.org/wiki/Type_2 https://en.wikipedia.org/wiki/Type_III https://en.wikipedia.org/wiki/Type_III https://en.wikipedia.org/wiki/Class_1 https://en.wikipedia.org/wiki/Class_1 https://en.wikipedia.org/wiki/Class_2 https://en.wikipedia.org/wiki/Class_2 https://en.wikipedia.org/wiki/Class_3 https://en.wikipedia.org/wiki/Class_3 etc.