Summary: An understanding of what biodynamics is and why it has so many young followers today begins with a look at history and the question of why Rudolf Steiner's impulse came about in Germany, in 1924, during the interwar years. The questions that farmers asked themselves then are as relevant today as they were then and have a lot to do with the fertiliser issue. In this webinar, we will take a look at this history and what is modern about the 100 year old