"Crop failures caused hoarding and big price increases for agricultural commodities."
https://newenglandhistoricalsociety.com/1816-year-without-a-summer/
Ed McQuarrie talks the REAL History of Stocks and Bond performance.
https://www.morningstar.com/funds/what-doubters-get-wrong-about-6040-portfolio
What the 60 percent stock portfolio and the 40 percent bond portfolio helps your portfolio