Bitcoins were launched in 2008 in the wake of a global financial meltdown when people started losing faith in the modern financial system, and the existing monetary policy was deemed inefficient in stimulating the global economy.
Why The Person Who Created Bitcoin Remains a Mystery
Bitcoin was the first cryptocurrency created in 2009, but its origins can be actually traced all the way to 1980s when the Proof of Work algorithm invented by cryptographer David Chaum was first used to contain email spammers.
Bitcoin is all about anonymity. People turn to anonymous transactions for various reasons, which don't necessarily have to be malicious. That's why you should create "disposable" Bitcoin addresses to only use once for a particular transaction.