Conversation so far:
when did the stock market crash in the 21st century
The 2020 stock market crash is a global stock market crash that began on the 20th of February, 2020.
what happened with the 2020 stock market crash
Multiple indexes such as the Dow Jones Industrial Average, and the S&P/ASX 200 fell into a correction late February during one of the worst trading weeks since 2007–2008.

Question: how did the market crash
Self-contained rewrite: how did the 2020 stock market crash