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Hello my dear Steemians, from very small I called attention to computing, to the point that years later I graduated in this area and end up teaching computer classes in different places until I started working in the Ministry of Education in my country , Venezuela, teaching in an Industrial technical school, but it was always within me that spark that drove me to know a little more, taking me to learn several programming languages and play as a programmer, my name is Gregorio DiFelice and is a Pleasure to write this article where I want to take them on a fascinating journey through the history and evolution of blockchain, which happened throughout history and how the events gathered to give birth to this technology that is changing the world and is without Doubt the future of computer science.

Let's make a little history.

To make our trip we will use a capsule of time that transported us to those regions and times where they passed the events that gave rise to what we know as Blockchain, for a long time but long since the prehistory man has had the Need to keep records of their activities, an example of this are the cave paintings that can be appreciated but let's take a trip in our time capsule and travel to year 6700 BC, specifically to the ancient Sumerian, what we know today As the Middle East, where the first civilization known as such is established where the first great discoveries for humanity are made, at this time, it was a civilization in constant development, and by the year 3500 BC emerged to Invention of the wheel, for no one is a secret the importance of this discovery and I mean it for humanity, but we are here to find out how this civilization is important for the emergence of Blockchain, for in the year 3300 BC the Writing, by the imperious reason of recording the activities that we had already mentioned, these are the first records that are known of an organized writing and a numerical system, to part of the Egyptians who also join this emergence, but that history It is a little better known, after the development of writing arise multiple applications for this new system, where they begin to take records of agricultural activities, policies and many other activities.

Very well Steemians, we already have an idea where things go, but let's get in our capsule and travel to the other side of the world, specifically to Peru, to the time of the ancient Inca civilizations in the Pre-Columbian America, where the Incas, developed a Very complex accounting system based on ribbons of colors and knots called Quipu, these were grouped and had knots and different colors that each represented an accounting figure, SATA Way was carrying a control of land, possessions, and crops as They had a complex tax system, and so they worked in an organized way, which allowed them at the time a surprising boom until the time of the conquest, where the Spaniards managed everything in a modern way if you want with an accountant properly Assigned to this purpose.

Now we travel in our capsule to Venice in the year 1494, where the first double entry accounting system is created, which is the principle by which accounting is governed today, but in this way we have observed how it evolves the way to register operations Over the years, but that step with the great flow of information that was managed, was increasingly growing and always arises the need that starts a way to solve it, this time we will travel to the year 1963 to the city of California in the United States where it is ACU For the first time and I finished database, we were taking a giant step for humanity comparable with e trip to space, was simple the idea, a database was a set of data organized by generally by a fact or information in common in each one of them , but different at the same time, totally individual called the key field, as this had all the data, but it was different for each one and on these disks you could access the information directly jumping over the other data, ie without having to pass R for everyone.

It was a simple but revolutionary concept at the time that would give way to the information revolution and the emergence of new sciences such as data processing, database development and all that, but let's continue with our journey. Although the databases go back to the antiquity since these are in if all these records that were taken from the activities, it is at this moment where one glimpses the emergence of the modern databases.

I think the history of computing is intimately related to this story but as the computer evolved as a device available to all the citizen who wanted to use it, in turn developed applications to give use to all the Potential of these new machines capable of helping the human in his daily work.

You know emerged the first computer, then the Apple, each with its different operating system, this way arises the inseparable marriage between equipment and programs, where each evolved separately but together at the same time, but I think that will be another trip For our time capsule, on another occasion, we go now to what we have here and now, we travel in our capsule until the year 600 BC to know our next ingredient in this complex and fascinating system called Blockchain.

We are here in the year 600 BC, to know the origins of cryptography, an essential part of what now Blockchain, is this epoch, and for specific religious motivations The Hebrews use one of the first cryptographic systems called Atbash, perhaps E Most known use case is the number of the beast that appears in the Book of Revelation in the New Testament of the Christian book, but also other cryptographic methods were used in the Coran, using frequency analysis and all types of techniques Which some remain in force.
Now our capsule will take us to the Second World War where mechanical encryption machines were used to send and receive messages that the enemies could not intercept and in turn, they tried to find out that they said the messages of their enemies that also They were encrypted.

But because we are interested in all this, simply because cryptography is the heart of the Blockchain because the information stored in this is fully encrypted.

Very well my Steemians, we go in our capsule to a time a little more recent year 1969 when a group of scholars believe what would be known today as the Internet and would change the world completely, is at this time in history where you create ARPANET a network of C Omputadoras where anyone for academic or research purposes could access and use it to share information, then the United States creates a similar network for military purposes and this is the predecessors of today's current Internet , but for no one is a secret that with the extensive use of this network also arose countless problems in terms of information and its security, all the data that is shared to presently are exposed to possible security breaches, pirate attacks Computers, viruses and all these kinds of problems, it is here that there is a need to ensure all information and countless efforts are made to protect this information.

We travel our capsule until the year 1997, now 21 years ago, Adam Back invented Hashcash, a system of monetary exchange that would be the fundamental pillar of the systems known today in the blockchain as the most famous of all the Bitcoin.

A year later, other systems would emerge which would lay the definitive basis for the exchange of digital assets and consequently the emergence of the Bitcoin in the years 2008-2009 when a stranger named Satoshi publishes his first papers on the Bitcoin , and although nobody knew very well what it was about, the way is subscribed to the emergence of this digital revolution.

With a strong influence of the years 90 specifically the cyberpunk movement, which defended freedom of expression and information, this idea arises and establishes the first steps of the Blockchain, but in if it is this Blockchain?.

In simple words is a revolution not only in technology but also in multiple areas, surely you have seen the decentralized word that always accompanies Blockchain, because that is, a decentralized block chain, this means that there is no Someone individual, or a particular company that controls it, is a total whole, where all stakeholders participate equally, making it collective, participatory and plural, but to make it so special, in these times where the flow of information is increasingly Greater and security is more necessary, a block chain establishes a unique security system where each block has two encrypted encodings, which are generated by the information that is stored in them, one code is input and another is Output and each code follows a sequence of previous block and is and Slavic of the string the exit code, for the next block, this is what makes the string is formed, and all involved can observe all the block but not its encrypted information , it is only that if this information is changed, for any reason, to falsify something, for example, the encrypted information changes like the codes generated by this, both the output and input code and the sequence of the string is altered this is Would break, leaving out that information, this guarantees the transparency in thousands of transactions that are carried out day by day, like contracts, exchanges of currencies among others, IE is a technology where the security is practically inviolable, and the blocks The miners create them, with their computers with high computing power, solving complicated algorithms, and when solving a block is ready to host another operation, transaction, or information and in return the miner receives a reward, this is basically the Operation of Blockchain, collective security at 100%, transparent operations, stability by multiple users, or nodes where if one fails the others maintain chain, decentralized and safe.

Now let's make one last stop in our time capsule, and we traveled a few years back until 2015 where the Blockchain was only used in the Bitcoin and other Criptodivisas and begins the expansion of this system to other areas of the global financial Network to To observe the effectiveness in security that this represents, arise multiple initiatives that begin to implement the Blockchain in its operations, already in the last years great alliances have been created and the uses of the Blockchain have been expanded to many levels, and what Promises this technology is that covered every day more aspects of our daily life, is simple, more shared control, decentralized, more transparent and safe in its operations, better every time, is like the spiritual aspect, a collective consciousness in Consensus, apparently the technology and specifically the Blockchain has reached this concept and is applying it effectively, we do not know how far it would go, we could embark on our time capsule and explore the future, but I prefer to leave it to your Criteria.

Thank you for reading and I hope to see you soon for another trip.
Resources:

https://computerhoy.com/reportajes/industria/historia-blockchain-cinco-hitos-1997-hoy-257817

https://es.wikipedia.org/wiki/Historia_de_la_criptograf%C3%ADa

https://www.bbva.com/es/historia-origen-blockchain-bitcoin/

https://es.wikipedia.org/wiki/Escritura_cuneiforme

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