This is the first in a four-part lecture series (1/4) on Celtic Christianity by Peter Brown, Rollins Professor of History Emeritus, Princeton University.
The lectures were given at All Saints' Church in Princeton, New Jersey on February 16, 23 & March 2, 9, 2003.
These are the finest lectures on the subject, in my estimation, and ought to be preserved online for posterity. You can get the originals at Princeton Theological Seminary's library.