Leading cryptocurrency Bitcoin (CRYTPO: BTC) hit all-time highs in 2021, a year that saw many exciting events for the cryptocurrency. One of the big stories in 2021 was large companies adding Bitcoin to their balance sheets. Here’s a look back at whenTesla Inc (NASDAQ:TSLA) bought Bitcoin and how much investors could have made following the electric vehicle giant’s lead. What Happened: On Feb. 8, 2021, Tesla disclosed it had purchased $1.5 billion worth of Bitcoin, a move that was made in the first quarter in the month of January. The announcement that Tesla had bought Bitcoin led to an immedi…