Astrid Lindgren in 1986. Photo: Bengt O Nordin /SVT Bild Astrid Lindgren told Radio Sweden how Pippi Longstocking was invented "She was sick in bed" 0:22 min 0:22 min 48 Published fredag 12 december 2014 kl 10.05 As part of our 75 year anniversary we've searched our archives for interviews. Here's one with Astrid Lindgren. Also in the news Our journalism is based on credibility and impartiality. Swedish Radio is independent and not affiliated to any political, religious, financial, public or private interests. Find out more about how we work (in Swedish).