In 2015, the twins also launched digital currency exchange known as Gemini which was the first currency exchange for Ether.
The Winklevoss twins, who shot to fame over suing Facebook's top man Mark Zuckerberg got the new achievement under their names.
The entrepreneur duo has become the first known figures to become Bitcoin billionaires. While they have started to invest in the currency long back, recently with a constant record-breaking surge, new users of bitcoin have skyrocketed.
London-based Blockchain.info, one of the biggest global bitcoin wallet-providers, told Reuters that it had added a record number of new users with more than 100,000 customers signing up, taking the total number to more than 19 million. The evidence suggests that few of the users are buying bitcoin to use it as a means of exchange, but are speculating to increase their capital.
But apart from investing in the crypto currency from the very beginning what else the billionaires twins did differently? Following are the lesser knows facts about them:
1. According to a New York Post article, the twins are one of the early investors in Bitcoin. Cameron and Tyler Winklevoss won $65 million from the Facebook lawsuit, and invested $11 million of their payout into Bitcoin in 2013.
2. In 2013, Bitcoin was mostly valued beyond $250. The New York Times report stated that if the brothers bought bitcoin when it traded at $120, they would have bought close to 91,666 bitcoin. And as till Monday, the value of each coin was somewhat around $11,413.46, the total worth of their investment by Monday's evening could have reached $1.046 billion.
3. The brothers' investment in 2013 was reportedly one of the largest portfolios of Bitcoin in the world, approximately one per cent of the entire currency’s dollar value equivalent.
4. In 2015, the twins also launched digital currency exchange known as Gemini which was the first currency exchange for Ether.
5. "If Bitcoin is a better gold or seen as a type of gold-like asset, then it could be in the trillions on a market cap," Tyler Winklevoss told CNNMoney in 2015.
Echoing the same view in 2016 in an interview with the Financial Times, Tyler Winklevoss admitted that their basic thesis for bitcoin is that it is better than gold.
meanwhile, back home in India, Finance Minister Arun Jaitley, when asked recently about his stand on cryptocurrency or virtual money, he emphatically declared they were still not legal tenders in India.
His statement, however, has not deterred new entrepreneurs from jumping on the bandwagon of cryptocurrency exchanges, even as existing ones get aggressive in pushing trading volumes on theirs.
Drawn by the huge opportunity that is unfolding in this space – Bitcoin trading volume is reportedly Rs250-300 crore every month – new cryptocurrency exchanges are cropping every other day while the older players are seeing a huge surge in the traded volumes and their user-base on their exchanges.
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 "Entrepreneur duo famous for suing Facebook's Mark Zuckerberg becomes first Bitcoin billion")
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