Although stone age man probably wasn't intelligent enough to build a bridge, there would have been a point where a tree fell across a gorge or got stuck in the rocks of a fast moving river and therefore acted as a bridge.
Primitive man would have been intelligent enough to notice this and may have used it to his advantage afterwards
Yes, land bridges such as the Bering Land Bridge allowed prehistoric humans from the Stone Age and Middle Stone Age to migrate to different parts of the world. These land connections facilitated the movement of populations between continents during periods of lower sea levels.
Generals' Highway Stone Bridges was created in 1930.
Stone bridges were built to get over rivers etc, before iron or steel was used.
Bridges have been built since the stone age, it is impossible to say where or when the first one was built.Likelysometime in the stone age when some cave people piled up some rocks to get across a river.
Illinois Central Stone Arch Railroad Bridges was created in 1855.
During the Stone Age, sea levels were lower due to the presence of ice sheets, creating land bridges between Europe and Britain. Stone Age people could have walked across these land bridges or potentially used simple boats or rafts to cross short distances of open water. As the ice melted and sea levels rose, Britain eventually became an island.
Stone masonry bridgeSteel bridgesTimber bridgesBow string bridges
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Bridges can be built of many different materials including stone, concrete, wood and metals.
Of the Stone Age and the Bronze Age, the one that was the earliest was the Stone Age. The Stone Age occurred first followed by the Bronze Age and then the Iron Age.
All of the Stone Age was prehistoric. When it is divided into two parts they are the Old Stone Age (Paleolithic) and the new Stone Age (Neolithic).
There's actually three parts to the Stone Age. There's the Old Stone Age, the Middle Stone Age, and the New Stone Age. To learn more about them you can Google them, there actually pretty interesting!