How Quora started?

When Adam D’angelo , Quora’s founder, was interviewed he said Facebook was already an established business and he felt he could impact the world more if he started a new thing.

Adam D’angelo said in an interview that he realized that there was no good site that provided detailed information about startups. This is why he decided to fill the gap with Quora

Adam D’angelo left his job as Facebook’s CTO and decided to work on his own startup Quora.

Both Adam D’angelo and Charlie Cheever started working on Quora in June 2009 but they didn’t release it to the public.

After one year of working on the site Quora was introduced to the public in 2010 according to wikipedia.

According to Wikipedia Quora had 500,000 users by January 2011. (See How Quora gained initial traction?)

In March 2011 Quora has raised $11 million in series A funding.

On September 2011 Quora released it’s iPhone App then it released the Android version on September 2012. (See Why is Quora better than Yahoo Answers?)

In mid 2012 Quora got $50 million of funding. Adam D’angelo invested $20 million of his own money in that round. The company was reportedly valued at $400 Million dollars.

In April 2014 Quora announced they are raising $80 dollars at a valuation of $900 million dollars.

Estimates in 2015 have shown that Quora might be valued for above $2 billion dollars,