Why was blockchain created? What is blockchain trying to achieve?

As previous breakthroughs filled significant gaps to free civilisations from manipulations and dictatorships such as knowledge, power and distance, blockchain is going to increase the value of trust in data, as the history of that data will be proved and publicly visible for everyone to verify. Blockchain is trying to make transactions quicker and easier by eliminating intermediaries that currently provide the trust value between the parties doing the transaction.