What is a pontoon bridge? History of science
A pontoon bridge from the Column of Marcus Aurelius, in Rome A pontoon bridge is a temporary bridge that you make by lining up a lot of boats crossways across the river, [...]
A pontoon bridge from the Column of Marcus Aurelius, in Rome A pontoon bridge is a temporary bridge that you make by lining up a lot of boats crossways across the river, [...]
Early Slavic history: Where did the Slavs come from? A Slavic furnace from Novae, in Bulgaria (300s AD) - maybe a pottery kiln? The Slavs were Indo-Europeans The Slavs, who [...]
Danube river The first modern humans, the Cro-Magnons, probably walked into Northern Europe from Central Asia around 45,000 years ago. Some followed the fish along the Mediterranean coastline to Greece, [...]