Archaeologists in Trondheim, Norway have unearthed the church where Viking King Olaf Haraldsson was first enshrined as a saint. Experts uncovered the stone foundations of a wooden stave church where Haraldsson was likely enshrined after he was declared a saint in the 11th century. Olaf Haraldsson, or Olaf II of Norway, is the country’s patron saint. The king's sainthood played a key role in the introduction of christianity to Norway at the end of the Viking age. “The recent unearthing of the foundations of a church in the centre of Trondheim by archaeologists working for the Norwegian Institute for Cultural Heritage Research (NIKU) is one of the most significant archaeological discoveries in Norway in recent times," NIKU Excavation Director Anna Petersen told FoxNews.com, via email. Haraldsson…