Black Thursday

• The 12th of March, 2020, the stock and crypto markets were plunging downwards due to the Corona outbreak, which, among other things, created a critical situation for MakerDAO.
• From Week In Ethereum (15-3-2020):

"Thursday’s global selloff of risk assets led to the most negative price action day of crypto’s short history. The selloff inflated gas prices (~200 gwei) which caused trouble for Maker. The Maker oracles stopped working for an hour or two."

• Coin Metrics wrote (21-4-2020) an assessment of the long term fallout of Black Thursday.