Blockchain – Outside of Currencies
Digital currencies were the first-ever application of blockchain, which arguably didn't realize the technology's full potential. Although Bitcoin, the first major blockchain conceptualization, was introduced in 2008, it was not until years later that blockchain technology's possible applications in industries other than cryptocurrencies were realized. In 2010, discussion started regarding BitDNS, a decentralized naming system for domains on the internet. Then, Namecoin (https://en.bitcoinwiki.org/wiki/Namecoin) started in April 2011 with a different vision to Bitcoin, the sole purpose of which was to provision electronic cash. This can be considered the first example of blockchain usage other than purely as a cryptocurrency.
Next, in 2013, the first initial coin offering (ICO), MasterCoin, emerged, which paved the way for more ICOs. After that, Ethereum's ICO was hugely successful. With the availability of Ethereum...