Was this the start of the massive increases in Autism, Allergies, etc.? I don't know. But man, oh man, it'd be nice if we had "science" to research. But we don't.
We're told it violates the Hippocratic Oath to have a control group of unvaxxed kids in which to compare to vaxxed kids. How convenient.
Ed McQuarrie talks the REAL History of Stocks and Bond performance.
https://www.morningstar.com/funds/vanguard-wellesley-income-is-top-choice
Could be a great fund to start with starting in retirement and cash. Or use Vanguard Wellington and cash if you want to be more aggresive
https://www.morningstar.com/economy/what-weve-learned-150-years-stock-market-crashes
Take a look at this what has happend in past in stock market