Constructing
From man's first steps to the birth of Christ was a period like no other in the history of invention. Never again would man's survival be so dependent on his ability to invent ways to solve fundamental problems. And never again would man's technological creativity be the most significant factor in his evolution and the establishing of civilisation.
By the time modern man (homo sapiens or man the wise) appeared, probably somewhere in Africa between 100,000 and 250,000 years ago, his forefathers, the early hominids, had already invented stone tools. It is possible that they had also manufactured crude canoes and shelters. However, it would take many more years and a succession of vital inventions for man to evolve from a primitive, nomadic hunter-gatherer to the highly technologically literate citizen of the time of Christ.
We like to think that we are currently living through a period when technology has an unparalleled hold on society, but it is nothing compared with that of the ancient world, when invention and technology were the most powerful forces shaping civilisation. Throughout the ancient world, technology was the one factor that made all the other changes — social, political and cultural — possible. Without the inventions of ink and papyrus, many of man's ideas would not have spread as fast nor as widely. Without weapons and, later, the wheel, armies would not have conquered new territories as quickly.
The single largest step in early man's social evolution came around 10,000 years ago with the invention of animal husbandry and agriculture. This enabled him to progress from living in nomadic communities to settling in villages and small towns. The progress was brought about by a combination of climatic change and man's invention of more efficient hunting tools, of a means of controlling and utilising fire to clear undergrowth and of ways of building lasting shelters. It led to a massive growth in population, which in turn triggered a further rapid increase in technological innovation.
Most of this change took place in the eastern Mediterranean, where the climate and the annual flooding of fertile soils favoured the development of agriculture and later of cities such as Babylon. By around 6500 BC, Jericho is believed to have been the largest city in the world, with a population of 2,500.
Four thousand years later, the urban revolution had brought about a momentous cultural transition that in turn generated new needs. These were met by a quantum leap in technological innovation and the establishment of craftsmen and scientists. For the first time, manufacturing became established as man invented ways of making textiles, firing ceramics, producing metalwork and processing foodstuffs. This prompted barter methods to evolve into more sophisticated trading arrangements, culminating in the invention of tokens or early money.
With these technological changes came a corresponding increase in the complexity of the social and political organisation of human groups, which in turn necessitated the invention of written language, first to keep track of trading arrangements, then to communicate and record events, processes, philosophies and, of course, inventions.
The history of invention is littered with inventions that had little or no purpose and never caught on, but this was  still a period of invention for necessity's sake. It would be some time before an invention would be greeted with questions as to its role -and even longer until Michael Faraday would retort, "What use is a baby?" when asked what use his dynamo had.
It was also period when science and technology's symbiotic relationship was reversed. Technology, now often the application of scientific discovery and observation, predated science and in this period was empirical and handed down through the generations. By the time the city states were flowering in the early centuries BC, scientist-inventors began to emerge. Figures such as Hero, Strata, Ctesibius and Philon used observations and measurements of the physical and natural world to devise inventions. However, they were all minnows when compared with Archimedes. Here was a man of the calibre that the world would not see again until Sir Isaac Newton in the 17th century. The inventor had truly arrived.
Our achievement is to see the world made the way humans make things. It is to identify the insides of objects and the processes of nature with our own capacity freely, to make models in our minds and to realize them in the outside world. Effective knowledge therefore has a double aim: it equates knowledge with the capacity to produce phenomena, but it also aims to get inside its object. Pushed to an extreme, effective knowledge aims to make the object, and simultaneously to be at one with it.