How to earn bitcoin

How to earn unlimited free bitcoin? Before that you need to know about bitcoin. What is Bitcoin? Bitcoin is a digital currency, In 2009 a software developer Satoshi Nakamoto created it, which was an electronic payment system based on mathematical proof. It like to your gold chain, which can exchange with real money.
Bitcoin price 2009 to 2017
2009 1,309.03 BTC = $1
2010 10,000 BTC = $25
2011 1BTC = $0.91
2012 1BTC = $4.31
2013 1BTC = $68.89
2014 1BTC = $626.5
2015 1BTC = $198.59
2016,January 1BTC = $397.92
2016,July 1BTC = $674.03
2016,November 1BTC = $749.1
2017,January 1BTC = $806.94
2017,March 1BTC = $1037.85
2017,April 1BTC = $1215.69
2017,August 1BTC = $3383.79
2017,September 1BTC = $4248.00
Sources:
https://99bitcoins.com/price-chart-history/
You can invest on bitcoin it is 90% profitable business. If you buy now 1BTC in $4248. 00 next month maximum chance to increase this price. You can guess this after watching “bitcoin price 2009 to 2017 “
How to earn unlimited free bitcoin ?
You can see many sites for earn free bitcoin. But first you need create a bitcoin wallet address. Bitcoin wallet is a bank account for bitcoin. After that, go to top free bitcoin earning sites and earn free bitcoin. You can send your earned bitcoin from all sites to your bitcoin wallet address. Create your account on all top earning sites and work together and increase your earnings . Create Bitcoin wallet
Top free bitcoin earning sites.

1. Freebitcoin
   Min. earn per visit – 0.000005฿
   Max. earn per visit – 1.000฿
   Revisit time – 1 hour
   Referral commission – 50%
   Minimum withdrawal – 0.0001฿
   Join Now
2. BTC clicks
   Min. earn per visit – 0.000005฿
   Max. earn per visit – 0.000015฿
   Minimum withdrawl – 0.000010฿
   Referral commission – 50%
   Payout – On request
   Join Now
3. Bit Fun
   Min. earn per visit – 0.000003฿
   Max. earn per visit – 0.00005฿
   Revisit time – 15 minutes
   Referral commission – 50%
   Minimum withdrawl – 0.0001฿
   Join Now
4. CoinBulb
   Min. earn per visit – 0.0000010฿
   Max. earn per visit – 0.0000300฿
   Minimum withdrawl – 0.000040฿
   Referral commission – 100%
   Join Now
5. Multicoin Faucet
   Min. earn per visit – 0.0000020฿
   Max. earn per visit – 0.0000050฿
   Revisit after – 30 minutes
   Minimum withdrawal – 0.000043฿
   Referral commission – 50%
   Join Now