| 1 | I first went to work as a historian with the National Park Service in 1973. | |
| 2 | Sadly we lack accurate historical and physical evidence to prove this point. | |
| 3 | One recognizes at once the familiar Marxist pattern of history in this vision. | |
| 4 | Others have no such compunction, like Ronald Hutton, a history professor at the University of Bristol. | |
| 5 | During the following years he discovered older and older artifacts that pushed the limits of Japan' s known pre-history. |