Complex sentence: In 1554, in exile, Foxe published in Latin at Strasburg a foreshadowing of his major work, emphasising the persecution of the English Lollards during the 15th century; and Foxe began to collect materials to continue his story to the present.
Split into simpler sentences: In 1554, while still in exile, Foxe published in Latin at Strasbourg the first shadow of his great book, emphasising the persecution of the English Lollards during the 15th century. But as word of the contemporary English persecution made its way to the continent, Foxe began to collect materials to continue his story to the present.