[factsaresacred]

> Irish and Italian people were previously considered separate races

To whom? Outside of America this is ridiculous. Maybe that's it - The US has so many hangups about race they changed the definition.

Race: "differences in genetic ancestry based on different geographic origin". Just because people exploited the term and used it incorrectly does not mean it does not have an exact definition.

In the middle ages people who carried out trepanning claimed to know about medicine. People who called the Irish non-caucasian claimed to know about race. They didn't (or in the latter case, they did but were prejudice).

Neither medicine nor race need be discredited by past ignorance.