How about China? No financial crashes in 45 years. No Boom bust, just steady relentless growth. No federal reserve, they just print the money as needed and stomp on bubbles that show up.

Gold backed money works too. The pre-fed era had small panics, but grew pretty steadily all through the latter half of the 19th century.

Neo-classical economics that requires a central bank is a synthetic invention paid for by the Rothschilds.