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The wheel was a large invention throughout history. This is because it allowed Mesopotamian people to make carts to move food, carriages to carry people and led to other inventions.
Legend has it that it was in the 12th Century BCE. We have no conclusive historical or archaeological evidence of this, but the varied stories sung by the bards for hundreds of years, before the invention of alphabetic writing allowed written narrative records, may have some elements of fact in them.
The Romans. They built them to carry water to the cities from the mountains, plus they had a complete water system to provide water to fountains and in some cases homes. The Romans also invented the arch and concrete which allowed them to build the aqueducts, buildings, bridges, and the colosseum.
Fast curing cement - hugely important discovery which allowed cement to cure and harden in short times and even under water. The ancient Romans realised that adding pozzolanic earth from volcanic regions (Eg Pozzuoli near Naples) to traditional mortar allowed a water proof and extremely solid mix. This could be used to waterproof the interior of aqueduct tunnels or extend the potentials of Roman architecture with important buildings and domes such as the Pantheon. Reinforced concrete - they introduced metal bars into the concrete in order to gain greater strength. The first professional army. The Romans were a practical and utilitarian people, and needed for their various structures greater economy of material than was compatible with large blocks of stone, especially for such as were carried to great altitudes. The Roman arch supplied this need, and is perhaps the greatest invention ever made in architecture. The application of the Roman arches dates back to the Cloaca Maxima, and may have been of Etrurian invention. Some maintain that Archimedes of Sicily was the inventor of the arch; but to whoever the glory of the invention is due, it is certain that the Romans were the first of European nations to make a practical application of its great qualities. Use of Roman Arches Roman arches enabled the ancient Romans to rear vast edifices with the humblest materials, to build bridges, aqueducts, sewers, amphitheatres, and triumphal arches, as well as temples and palaces. The merits of the Roman arches have never been lost sight of by succeeding generations, and it is an essential element in the magnificent Gothic cathedrals of the Middle Ages. Its application extends to domes and cupolas, to floors and corridors and roofs, and to various other parts of buildings where economy of material and labor is desired. It was applied extensively to doorways and windows, and is an ornament as well as a utility.
No one, it's impossible to climb, and it's certainly not allowed!
Elisha's invention was important because it allowed skyscrapers and high story buildings to be built. It also created a leap in architectural advances
The ancient Romans had multi story apartment buildings and shopping malls. Cement made these things and other things possible after they invented cement.
Elevators allowed architects to build practical buildings that have many more floors for both businesses and residential applications. Higher vertical densities allowed for greater population densities of big cities.
the Chinese invention that allowed soldiers to fight on horseback was The saddle and stirrups.
Elevators allowed architects to build practical buildings that have many more floors for both businesses and residential applications. Higher vertical densities allowed for greater population densities of big cities.
In private places or in public places if they are not enclosed.
The invention of writing allowed people to communicate more broadly than had previously been done.
steel
Steam
Accurate timepieces.
The exhaust from gas powered engines contains carbon monoxide and in an enclosed area it can reach hazardous levels.
The telephone is a great invention in the history of communciation. The invention of radio allowed information to be rapidly sent between continents.