Ilsemarie emailed me thanking for my birthday email I sent to her on the 3rd of March.

  This March is the 10th anniversary of our beginning to exchange emails between Ilsemarie and me. I remembered about it the other day when Ilsemarie sent me back my first email to her 10 years ago. Many memorable things have happened for these ten years. Among which, the most unforgetable thing was when we visited her home in Germany in 2007 with Masako, Ayako's sister, and her husband, former Prof.Yamashita of Shinshu University in Nagano. We were welcomed by Ilsemarie and her family and were treated so warmly and hospitably.