Final answer:
The two denominations of Protestantism in Switzerland were Calvinism, established by John Calvin in Geneva, and Zwinglianism, founded by Ulrich Zwingli in Zurich. These denominations shared a reformist outlook on Christianity but had distinct beliefs and practices.
Step-by-step explanation:
The two denominations of Protestantism found in Switzerland were Calvinism and Zwinglianism. Calvinism emerged under the influence of John Calvin, who settled in Geneva and established the religion which spread rapidly beyond Switzerland. Zwinglianism was founded by Ulrich Zwingli, who implemented radical changes in the religious practices in Zurich, deviating from even Martin Luther's reforms.
Both Calvin and Zwingli were instrumental in advocating for a faith-centered around Biblical scripture and rejecting certain Catholic doctrines. While Calvin is known for his doctrine of predestination and its strict moral code, Zwinglianism is known for rejecting the notion of transubstantiation and the use of religious imagery within churches. Despite differences, both movements shared a common desire for reform and simplification of Christian practice to be more aligned with Biblical teachings. The Swiss Brethren, related to the Anabaptist movement, also gained prominence during this period with their distinctive belief in adult baptism.