These English expatriates undertook a translation that became known as the Geneva Bible. This translation, dated to 1560, was a revision of Tyndale's Bible and the Great Bible on the basis of the original languages. Soon after Elizabeth I took the throne in 1558, the flaws of both the Great Bible and the Geneva Bible (namely, that the Geneva Bible did not "conform to the ecclesiology and reflect the episcopal structure of the Church of England and its beliefs about an ordained clergy") became painfully apparent. In 1568, the Church of England responded with the Bishops' Bible, a revision of the Great Bible in the light of the Geneva version. While officially approved, this new version failed to displace the Geneva translation as the most popular English Bible of the age—in part because the full Bible was only printed in lectern editions of prodigious size and at a cost of several pounds. Accordingly, Elizabethan lay people overwhelmingly read the Bible in the Geneva Version—small editions were available at a relatively low cost. At the same time, there was a substantial clandestine importation of the rival Douay–Rheims New Testament of 1582, undertaken by exiled Roman Catholics. This translation, though still derived from Tyndale, claimed to represent the text of the Latin Vulgate.