As the history of European origami is being discussed, I will share two things I found recently. I give a presentation each year at a local university on the topic of the history of origami. These two items are a result of my preparation this year. This article, from Japan Times, tells about the German woman who was the head teacher at an early Japanese kindergarten based on Froebel's philosophy. This was probably the beginning (or one of the beginnings) of the marriage of the two approaches to paper folding.https://www.japantimes.co.jp/community/2016/12/14/issues/woman-brought-joys-kindergarten-japan/#.Wr6iby7wbIU (BTW, architecture fans: Frank Lloyd Wright was influenced by Frobel's approach to kindergarten activities encouraging experimentation with geometry.) I was able to find the book Easy and Fun Paper Folding by Huber and Claudius, as mentioned here by David Lister: http://www.britishorigami.info/academic/lister/froebel.php. I purchased it on eBay and it arrived today. The first part of the book highlights models based on the grid system favored in Europe. It makes the contrast quite clear. Dawn TuckerO'Fallon, MO
