This book, published originally in 1982, traces the development of a specific project from its inception to the successful completion of some of the longest chronologies in Europe.

This account argues that the Earth has undergone several catastrophic encounters with comets and their debris in the last five millennia, with mythology preserving the story better than history.

Exploring new ideas behind the emergence of the bubonic plague

The authors of this groundbreaking book argue that all the principal characters are aspects of the one Celtic sky god, Lugh, who was a comet.