Griffin is the co-founder of the William E. Colby Seminar on Intelligence, Military, and Diplomatic Affairs at Norwich University in Vermont, along with his friend, historian, and Patton biographer Colonel Carlo D'Este.
A Viking's height could be anywhere between 66 inches 1.67 meters and 69 inches 1.75 meters. The tall ones are said to be Vikings of higher stature since they are likely to have better nutrition and eat better diets compared to the common Viking warriors. The notion that Vikings were tall people may also be because people in some parts of Europe are relatively short. This may be the reason why they might consider Vikings as people with increased height. But compared Viking's height to today's people, they are considered as people with average height.
Two Viking ships were found by archaeologists in Norway. The Gokstad ship was dug up on a farm in 1880. The Oseberg ship was found on another farm in 1904. Both ships were buried in Viking funerals between AD 800 and 900. The Gokstad ship is 23 metres/76 ft long. It was big enough for 32 oarsmen - 16 oars each side.