On January 1, 1519, Zwingli preached from Matthew 1:1, beginning the Reformation in Switzerland.* Thereafter he continued to preach linearly through Matthew. This manner of preaching (or reading) Scripture is known in Latin as lectio continua, and from what I know it seems to be the dominant approach to preaching in Protestant Christianity. It is also sometimes known as systematic expository preaching.
The Wikipedia article on lectio continua mentions that as a practice of reading it has early church precedence. I'm wondering, though, whether there was also the precedence of preaching in this manner? In other words, was Zwingli going back to something that had previously been done, or was it something new to him?