When in recent history were the stock market and the economic conditions similar to the 1920s?

1910.

Explanation:

Both decades were periods of intense culture wars between “modernists” and “traditionalists”Both decades began with a major economic downturnBoth decades were marked by economic growth and prosperityBoth decades had similar interest rate patternsBoth decades witnessed a rise in installment plan purchasesIn both decades, a large portion of total debt growth was corporate debtIn both decades, the Fed's balance sheet shrank late in the decade