For the past 100 years or so, there have been huge improvements in communication. From letters to phone calls to text messages to video calls to social networks. Following all these improvements, one of the biggest inventions of the 21st century was founded in 2004[1]. After only a few years, it started to spread like wildfire – first in the US and then around the world.

Now, leaving Facebook has become nearly unheard of.
Source: Lifehack