#6469 - 1849 - Sangamon Shoal Boat Lifters
Lincoln patented an invention to lift river boats over shoals, freeing them up to continue rowing. First employed in 1849 on the Sangamon River. His patent number was 6469.
World Erg Challenge Participants
| Pos. | Athlete | Age | Location | Country | Challenge |
|---|---|---|---|---|---|
| 1 | Kirk Dobihal | 73 | Lincoln, IL | USA | 83,804m |