what's the difference between Blockchain and Bitcoin ?

Nowadays , we hear alot of people worldwide talking about Blockchain, and that is a great way to make money .
But there is always a link between Blockchain and Bitcoin ? whenever we hear Bitcoin we know that what's going to come after is Blockchain

So, is there a difference between the two ?

First of all , Bitcoin is the first cryptocurrency that was released in 2009 by mysterious person or group known as Satoshi Nakamoto and made a huge impact on the world economy .
And it works by using the blockchain technology . The latter is a public ledger, that makes bitcoin transactions secure and safe.
In other words , Bitcoin is a cryptocurrency and the blockchain is the technology that underpins it

For more details watch this video