When did Bitcoin crash?

I'm sorry, but could you clarify your question? Bitcoin has experienced numerous price fluctuations since its inception in 2009. There have been several significant crashes and rallies over the years. Are you referring to a specific crash, or are you interested in a general overview of Bitcoin's price history? If you're asking about a specific crash, please provide more information such as a date range or a particular event that preceded the crash. This will help me provide a more accurate and detailed answer. If, however, you're interested in a general overview, I can give you a brief summary of Bitcoin's price movements throughout the years. Bitcoin has experienced significant volatility since its inception, with prices crashing and rallying dramatically at times. Some of the most notable crashes occurred during the Mt. Gox hack in 2014, the Chinese government's crackdown on cryptocurrencies in 2017, and the bear market in 2018. Please let me know which type of information you're looking for, and I'll do my best to assist you.