Chronology for Grebel

1518 Joachim Vadian and Conrad Grebel climb Mount Pilatus together.
1519 Joachim Vadian marries Martha Grebel, Conrad Grebelís sister.
1521 January 21 The first adult baptism of the reformation occurs. First Adult Baptism
1523 Second Zurich Disputation in which Zwingli argued for the removal of images from churches. Grebel unsuccessfully argued for the abolition of the mass.