https://www.reuters.com/article/us-tesla-crypto-currency/a-tesla-for-a-bitcoin-musk-drives-up-cryptocurrency-price-with-1-5-billion-purchase-idUSKBN2A81CG >Bitcoin took another large stride toward mainstream acceptance on Monday after billionaire Elon Musk's electric vehicle company Tesla Inc revealed it had bought $1.5 billion of the cryptocurrency and would soon accept it as a form of payment for cars, sending the cryptocurrency shooting higher.