Happy Birthday To The Heidelberg Catechism (2016) by R. Scott Clark on January 19, 2016 The catechism was published on this date (Julian calendar) in 1563. Here are some resources: Introduction to the Heidelberg Catechism Happy Birthday (2010) Happy Birthday (2011) Happy Birthday (2013) Which Translation of the Catechism? Outstanding Resources For Understanding the Catechism Subscribe to the Heidelblog today! Email Required* Twitter