How did lutheranism become a revolution in the early sixteenth century?

Lutheranism became a revolution in the early sixteenth century largely due to Martin Luther's challenges to the Catholic Church, particularly with his Ninety-Five Theses in 1517, which criticized the sale of indulgences and other church practices. His teachings emphasized salvation through faith alone, the priesthood of all believers, and the authority of Scripture over church tradition. This resonated with many who were disillusioned with the corruption within the Church, leading to widespread support and the formation of new Protestant communities. The movement also gained momentum through the printing press, which facilitated the rapid dissemination of Luther's ideas across Europe.