Me: Arminius always claimed the name calvinist.
To correct by expansion my earlier short message to ftD, it would have been better to say that Arminius' claimed to be reformed....and to the extent that the reformers called themselves "calvinist," he would have been found doing the same.
Similarly, if I were to say that Ronald Reagan "claimed the name ' U.S. Citizen.;" and then gave you a copy of his final speech, you might not find the expression "U.S. Citizen" specifically used. You would, however, find plenty of evidence to support the claim. Your final bit of evidence would be the closing of the speech with, "And may God Bless America."
Luther, Zwingli, and Melanchton fall in the Reformed school, yet are not Calvinistic.