The narrow, cobbled streets of Zürich's Old City were once home to many key figures in the Swiss Reformation. Their former residences and businesses are not open to the public, but most bear German historical markers. An easy walking tour encompasses them all.
The unassuming office building at 13 Kirchgasse belies the importance of the work that was accomplished within its walls. Here is the "Helferei", the office where Huldrych Zwingli studied and wrote the sermons that forever altered Zürich and Switzerland.
Bern's leap into the Reformation was followed soon after by Basel, but Protestant theology was no new idea in this city. The wealthiest and most literary city in Switzerland in the early 16th century, Basel was home to a highly-regarded university and some of the most important humanist thinkers of its day. Key among those was Erasmus, Father of Renaissance Humanism, whose 1516 edition of the Greek New Testament made the Protestant Reformation possible. Oecolampadius was also from Basel, an expert debater, scholar and consensus-builder, and Froben Printers, the printing house which published the writings of its local scholars.