Christensen Instructions - Inventor: Amanda Christensen - Fun Fact: Used in the 1800s - The Christensen knot was made with no one but Swedish creator, Amanda Christensen, knowing how to tie it. Eventually people over time were able to figure out how it was more or less tied. However no one still knows if this was the same method Christensen took in making the knot. The Swedish royal family is also avid fans of the knot.