The Augustana Evangelical Lutheran Synod was organized (P45 gives only "June, 1860").

The evidence

• “According to resolutions passed at a meeting held April 7, 1858, a church building was erected during the summer of this year, costing about $1,700. In 1860 the congregation participated in the formation of the Scandinavian Augustana Synod, which was organized at the old frame church at Bergen Postoffice, Wis., at a meeting held there June 5-12. This meeting consisted of six Norwegian and sixteen Swedish pastors and fourteen congregational delegates.”

  1908-brown-rock-county/31-smaller-cities-villages-towns.md, Vol. 2, PDF p. 134 / book p. 643

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

  Grade A: Found on a page of one of our sources