John Robert Christianson
John Robert Christianson is Professor Emeritus of History in Luther College, Decorah, Iowa. He has written widely on Scandinavian history and Tycho Brahe, including On Tycho’s Island (2000).
John Robert Christianson is Professor Emeritus of History in Luther College, Decorah, Iowa. He has written widely on Scandinavian history and Tycho Brahe, including On Tycho’s Island (2000).
