Tim Severin's The Brendan Voyage

In The Brendan Voyage, Tim Severin attempts to prove the possibility of the history of European discovery America was thousand years earlier than we were generally be told from the clues of Navigatio- an ancient legend story of a Irish sailor saint-Branden sailing from North Europe to North America.But over the years, the story was recorded fictional. In order to prove it ,Tim Severin come up a sailing project with his crew and the helps from many people to conducte geographical surveys and historical research by following Brendan's sailing footages.
The book also contains three appendices at the end of book.
Thesis: When reading the appendices alone,it presentes supplementary resources for readers to discover ,but as a reader did not get the emotional experience of reading the narrative and experience the journey first-hand when read the book. However,when both are read together ,the reader are able to better understand the author’s

The reader would find out in Appendix I, Severin refers to the composition edition of Saint Brandan sailing story- Navigatio in chapter by chapter. He presents the whole movement of how saint Brendan and the Irish monks started and ended the voyage. The Navigatio was written like a fiction story such as some part was fictionalized. For instance,“a small devil jumped out of the monk’s bosom,and the man died”(240)and when the whale was get closer to the monks in the voyage, the book was recorded as “[The beast] passing near the boat,he attacked to the first monster,breathing fire”(243).The point is now reader can understand why the Navigatio was not be trust by people and hard to do research.While in appendix II,Severin acts as a detective by refer to his own sailing experience and other historian’s indication to sort out a report. He analyse the Navigatio,to explain