Furthermore, in 1354, King Magnus Eriksson of Sweden and Norway issued a letter appointing a law officer named Paul Knutsson as leader of an expedition to the colony of Greenland, in order to investigate reports that the population was turning away from Christian culture. Another of the documents reprinted by the 19th-century scholars was a scholarly attempt by Icelandic Bishop Gisli Oddsson, in 1637, to compile a history of the Arctic colonies. He dated the Greenlanders' fall away from Christianity to 1342 and claimed that they had turned instead to America. Supporters of a 14th-century origin for the Kensington Runestone argue that Knutson may, therefore, have travelled beyond Greenland to North America in search of renegade Greenlanders, whereupon most of his expedition was killed in Minnesota, leaving just the eight voyagers to return to Norway.