There are over 1,000 virtual currency trading platforms in the world, including Bitcoin, Ether, DogeCoin. The peak of the virtual currency boom is January 1, 1818, when the market value estimated by CoinMarketCap.com exceeds $ 835 billion.
Wow, I never knew that cryptocurrencies were 200 years old.
/s
On the other hand, I'd rather have a multifaceted approach to celebrating bitcoin's birthday. First a pre-celebration on Oct 31, when the whitepaper was published. And then the real celebration in January right after the new year comes in. January 3....
I'd end the celebrations around January 15.