Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Safenwil is a municipality in the district of Zofingen in the canton of Aargau in Switzerland. Rock carvings in the historical landmark the Eberkopf (German: Boar''s Head) confirm the town to be old as 893 AD. Safenwil''s coat of arms depicts a boar''s head. Theologian Karl Barth formulated his early theology and wrote his influential commentary The Epistle to the Romans (German: Römerbrief) while serving as a pastor in Safenwil.