• Satoshi Nakamoto began working on the Bitcoin concept.

August

• Neal Kin, Vladimir Oksman, and Charles Bry file an application for an encryption patent application.
• Bitcoin.org was registered at anonymousspeech.com.

October

• Nakamoto describes the Bitcoin currency and solves the problem of double spending.

November

• The Bitcoin project is registered on SourceForge.net.

January

• Block 0 is established.
• Version 0.1 of Bitcoin is released.
• The first Bitcoin transaction.

October

• An exchange rate is established.

December

• Version 0.2 is released.
• The difficulty increases.

February

• The Bitcoin Market is established as a Bitcoin currency exchange.
• Encryption patent is published.

May

• The first real-world transaction using 10,000 BTC spent on pizza.

July

• Version 0.3 released.
• In five days, the price grew 1000%, rising from $0.008 to $0.08 for 1 bitcoin.
• The MtGox Bitcoin currency exchange market is established.

August

• Exploit generates 184 billion Bitcoins.

October

• Financial task force issues warning.
• The first public version of an OpenCL miner is released.

November

• Market cap exceeds $1 million USD.

December

• Bitcoind compiled for Nokia N900.
• First mobile Bitcoin transaction.
• Difficulty increases.

January

• Silk Road opens for business.
• 25% of total Bitcoins generated.

February

• Bitcoin reaches parity with US dollar.
• WeUseCoins.com is created.

March

• Second largest decrease in difficulty.
• Britcoin opens for trading.
• Bitcoin Brasil opens.

April

• Bitcoin passes parity with Euro.
• Difficulty surpasses 100,000.

June

• Bitcoin Market drops PayPal.
• The largest percentage price decrease to-date became known as the Great Bubble of 2011. Top of bubble at $31.
• WikiLeaks starts accepting Bitcoin.
• Major breach of security at MtGox.
• Difficulty passes 1 million.

August

• Bitcoin Conference and World Expo in New York City, NY.
• P2Pool mines its first block.
• Back-to-back drop in difficulty.

September

• Casascius coins mint physical Bitcoins.

November

• Bitcoin & Future Technology European Conference in Prague, Czech Republic.

December

• $2 minimum price after the first price drop.

September

• London 2012 Bitcoin Conference.
• Bitcoin Foundation begins.

December

• Slowly rising for a year. Price at $13.

February

• Version 0.8 released.
• Bitcoin goes up to $30.

March

• Bitcoin spikes to $74.90.
• Market cap reaches $1 billion.

April

• Bitcoin surpasses $100.
• Price hits an all-time high of $266.
• Bitcoin Central is hacked.

May

• First Bitcoin ATM unveiled.
• Bitcoin Central gets hacked again.

October

• FBI shuts down Silk Road.
• Bitcoin price drops from $139 to $109.71 in less than three hours after Silk Road closure, recovers.

November

• Bitcoin price surges to a new all-time record of $1242.

December

• Price crashed to $600, rebounded to $1000, crashed again to the $500 range. Stabilized in between.
• China's Central Bank bans Bitcoin transactions.
• The network exceeded 10 petahash/sec.

January

• Price spiked to $1000, then settled in the $800–$900range.

March

• Version 0.9 released.

June

• The network exceeded 100 petahash/sec.

December

• Microsoft began to accept bitcoin to buy Xbox games and Windows apps.

February

• Version 0.10 released.

July

• Version 0.11 released.

November

• 2015 record high of $504.

January

• Price at $1150 per bitcoin.
• Price fell 30% in a week, reaching a multi-month low of $750.
• The network exceeded 1 exahash/sec.

February

• Version 0.12 released.

April

• Steam started accepting bitcoin as payment.

August

• Version 0.13 released.

September

• There are 770 bitcoin ATMs worldwide.

March

• Version 0.14 released.
• The price of 1 bitcoin surpassed the spot price of an ounce of gold for the first time.
• The number of GitHub projects related to bitcoin passed 10,000.
• Price traded above $1290.

April

• Japan Declares Bitcoin as Legel Tender

August

• Bitcoin "splits" into Bitcoin (BTC) and Bitcoin Cash (BCH)

November

• Bitcoin for the first time hit $10,000

Today

• At the moment, one bitcoin cost:
  .