Because of the bravery and conviction of men like Martin Luther, Ulrich Zwingli and John Calvin the gospel was recovered and made available to the masses. The Five Solas sum up the core beliefs of the early reformers:
Sola Gratia (grace alone)I am of the reformed faith. I believe in election and in the complete sovereignty of God. I believe that He works all things for the good of those who are called according to His purpose. I believe in the gospel. I believe.
Sola Fide (faith alone)
Sola Scriptura (scripture alone)
Solus Christus (Christ alone)
Soli Deo Gloria (to God alone be glory)