3 ene 1829 año - First Snagboat invented.
Descripción:
These boats patrolled the rivers and removed snags so other boats would not hit them and sink. A snag is a sunken tree, stump, or boat wreck that could cause damage to a ship if hit.
http://www.usace.army.mil/About/History/Historical-Vignettes/Civil-Engineering/120-Snagboats/
Añadido al timeline:
fecha:
3 ene 1829 año
Ahora mismo
~ 196 years ago
Fotos:
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