In a world so hectic and so full of needs we find systems that can help us in the development of our daily activities. Backpacks are presented as an excellent option for people who must be loaded with objects all day. Backpacks are a system of baggage that takes in the back, by means of a clamping system which can vary from eight straps to one; backpacks today are the charging system, both objects and documents most widely used, since it offers like advantage ease of carrying them to the back, without making a great physical effort. The history of modern backpacks have their beginnings in Babylon and Egypt, where agriculture was its great founder because the harvesting of grains and fruits were made into a kind of backpack, which consisted of several amarraderas that had secured them to the body, in order to facilitate and improve the collection of products. It’s good to highlight that these backpacks in their beginnings were somewhat uncomfortable, since its preparation on the basis of mud and dried plants could be heavy and somewhat tortuous in the work in field. Currently the backpacks are built in a myriad of materials, in order to make more adaptable these to the body and even more to the daily work.
The great diversity of backpacks has led to such an extent that the divisions that have had these make them the mother of other articles. Some of them like: luggage Backpacks: backpacks developed in order to accommodate a large number of personal objects are. The big difference that has this with conventional backpack, is that these were added to radachines in order to facilitate its transport. Backpacks for school: these are backpacks designed especially to study, since they present a large number of pockets where you can save a large amount of useful. Backpacks porta babies: are those that are designed to carry a baby inside, although it must be clarified that these backpacks consist of a single very airy Chamber so that the baby has no problems breathing. Artisan Backpacks: these backpacks are typically drawn up by people from communities indigenous people or by people who develop this type of practice; they are made with natural elements and tissue that usually represent the region where were built.
Labour Backpacks: are made to have a large load capacity, thanks to their large sizes, a clear example of these are used in courier companies. The big difference that preserved these backpacks with the conventional is that its manufacturing material is especially resistant, without comment on the size of them. According to the above is demonstrated that backpacks are an excellent choice for any type of load, besides the ease they offer for daily tasks make it a very useful tool in the everyday life of a person.
To the 1st century BC was created in Rome a building to house the struggles of gladiators, the amphitheatre, which was built in all major cities of the Empire. The Flavian ampitheatre or Colosseum, was the largest all them and one of the largest built in the old construction and structure of the origin of the amphitheatres Colosseum: until the time of Julio Cesar, tas struggles of gladiators and similar held in circuses or in removable structures built for the purpose. Curio was young, around 52 BC, who is credited with the idea to build two theatres of wood of the same size, townhouses by the vertices of their curves and mounted on two axles. These structures could turn on such axles and stay United Front by front, so that the two hemicycles to form an immense oval, partitions of two theatres scenarios could be removed to form a unique sand. In the time of Augustus, rose is the first? double you, stone from Rome: was erected South of the Champ de Mars, in 29 BC by Cayo Estatilio Taurus. When it was destroyed in 64 d.