[From Mark]:

‘Inerrancy’ does not appear in Latin nor English before the 1800’s according to the “Oxford Companion to the Bible”.

The earliest known example was from 1865 and had to do with the RCC prior to the Ist Vatican Council “The old Ultramontane doctrine of the inerrancy of the Pope”, Pusey “Eiren”, p.326. (source: OED)

The next earliest example appears in 1880 “The superstition which magnifies the wisdom of our ancestors into inerrancy” “19th Century”, Sept, p.429 (source: OED)

While “Fundamentalism, combined late 19th-century premillennialism with more or less rationalistic defences of biblical inerrancy, it took its name from a sequence of tracts called The Fundamentals that were issued between 1910 and 1915 in the United States, and the movement became institutionalized in 1919 and 1920, as Fundamentalism became a formal and militant party in denominational conflict in the United States.” (source: Enc.Brit.). ————————— [end paste]

We should not dismiss more recent endevours such as the Chicago Statement http://en.wikipedia.org/wiki/Chicago_Statement_on_Biblical_Inerrancy http://www.iclnet.org/pub/resources/text/history/chicago.stm.txt

In short, Fundamentalism and inerrancy are recent developments to Christendom.