Blockchain is different from conventional databases in that the former collects and stores data in sets called blocks. Blocks have a specific data storage capacity. When they are filled, the block is closed and the next block is started and linked to the previous block. Blocks form a chain in this way and the whole network is called a blockchain. Read more>>>https://coinfantasy.io/blog/how-to-new-blocks-are-added-to-a-blockchain/