Six generations. One hundred fifty years. A single compass passed hand to hand to hand.

The family tree is live. Starting with the original Kronecker in 1874, down through mathematicians and artists, skeptics and believers, all the way to the present. The compass traveled with them—sometimes treasured, sometimes forgotten, always finding its way to whoever needed direction most. In this episode, we trace the inheritance.The branches are spreading. Where do you belong on this tree?"Explore the interactive family tree at kronecker.rondanini.com. Follow the compass through six generations."