1. A member of a Western Christian church whose faith and practice are founded on the principles of the Reformation, especially in the acceptance of the Bible as the sole source of revelation, in justification by faith alone, and in the universal priesthood of all the believers.
2. A member of a Western Christian church adhering to the theologies of Luther, Calvin, or Zwingli.
3. One of the German princes and cities that supported the doctrines of Luther and protested against the decision of the second Diet of Speyer (1529) to enforce the Edict of Worms (1521) and deny toleration to Lutherans.
Basically, a religion that was founded when the people realized the Roman Catholic church was going nuts and so they decided they had to stop this somehow. Protestantism is often misunderstood because some protestants of the past were way too radical, like for example, Hitler.
Normal Protestants just believe in faith, God and the Bible, since they believe the Roman Catholic church is full of bs-ers and one of the few last worthy people in there died a couple of months ago.
Crazy Protestants kill those who don't agree with them.
Because of the crazy protestants the normal ones are often misunderstood.