Pontoon bridge in 638. The army of the Umayyad Caliphate built a pontoon bridge over the Bosporus in 717 during the Siege of Constantinople (717–718). The Carolingian army of Charlemagne constructed a portable pontoon bridge of anchored boats bound together and used it to cross the Danube during campaigns against the Avar Khaganate in the 790s. Charlemagne's army built two fortified pontoon bridges across the Elbe in 789 during a campaign against the Slavic Veleti. The German army of Otto the Great employed three pontoon bridges, made from pre-fabricated materials, to rapidly cross the Recknitz river at the Battle on the Raxa
Junk food cake, candy, ice cream soda, chocolate malted, sundaes, sweetened carbonated beverages." The term "cheat food" can be traced back in newspaper mentions to at least 1916. In Andrew F. Smith's "Encyclopedia of Junk Food and Fast Food", junk food is defined as "those commercial products, including candy, bakery goods, ice cream, salty snacks, and soft drinks, which have little or no nutritional value but do have plenty of calories, salt, and fats. While not all fast foods are junk foods, most are. Fast foods are ready-to-eat foods served promptly after ordering. Some fast foods are high in calories and low