**Calendars show the date of October 31, 2008. **At that time, when the world was dealing with crises whose effects reached global dimensions, many people were unaware that the foundations of a system that would deeply affect the financial world had been laid. A man named Satoshi Nakamoto, who is still unknown who or who they are, metzdowd.com a 9-page file was posted on the site called: “Bitcoin: a Peer-to-Peer Electronic Cash System.”..

Satoshi Nakamoto, who described the Bitcoin system in this file, designed the first blockchain, the blockchain database, as part of the system. Nakamoto, who continued to develop Bitcoin through this system until December 2010, disappeared some time later. Leaving no trace except for Bitcoin, which will spread rapidly around the world after a while.
Production expected to end in 2140

The limit for Bitcoin production, which is in demand for hundreds of thousands of people, is 21 million units. It is expected that the last Bitcoin, that is, 21 million of them, will be produced around 2140 years.

So, with Bitcoin and other cryptocurrencies that we call sub-coins, blokzincir, in what direction does it affect the course of the world, what is the reliability of the system, what impact will it have on the future of states, will it have the permanence of this system that does not belong to a company or state?

Number of coins more than 4 thousand

**Bitcoin, which we can call the ancestor of all coins, and its sub-coins, although its history is not far away, is a cryptocurrency without a payment unit that exists without being connected to any center or person. In this system, where only cryptocurrency itself is bought and sold, there is a balance of supply and demand, just like in real economies. **

Its value rises when demand for Bitcoin increases, while its value drops when demand decreases. For example, with Turkish Lira, you can buy any cryptocurrency of your choice in a certain amount and then cash it again after a while. It's like a kind of foreign exchange transaction... but since these transactions are made over the internet without any interlocutors, it creates a question mark in the minds.