Reddit mentions of American Colossus: The Triumph of Capitalism, 1865-1900

https://www.amazon.com/American-Colossus-Triumph-Capitalism-1865-1900/dp/0307386775/ This book is very accessible and ends by describing the death of 19th century capitalism. (Spoilers: Teddy Roosevelt makes some new policies, and J.P. Morgan dies.)

No, the author is not pro-capitalist (in the 19th century sense). He is a historian. In other words, he's an academic who enjoys digging up and providing verifiable facts about the past. From these, you should be able to tell the difference between the 19th and 21st centuries (assuming you understand the 21st century).

Yes, I'm going to tell you to go read a book. I have little motivation to say more to someone who comes across as belligerently ignorant.

Edit: I will say this much though. In the 19th century, whenever there was a crash, responsible companies went out of business. That doesn't happen anymore with our current government bailouts. Today, there is little to no accountability for big businesses.

For more on this connection, check out the book Age of Gold by HW Brands, who's a featured historian in Gold Fever.

Brands also wrote American Colossus: The Triumph of Capitalism, 1865-1900, which we relied on a lot during research for Men Who Built America.

If you are looking for books on the history of American Economics, check out American Colossus: The Triumph of Capitalism| A Fierce Discontent: The Rise and Fall of the Progressive Movement in America|An Empire of Wealth: The Epic History of American Economic Power|or Crash!: How the Economic Boom and Bust of the 1920s Worked (How Things Worked).

Each of those are well researched and easy to understand.

Edit: I forgot to add: The General Theory of Employment, Interest, and Money by John Maynard Keynes Hard to have a strong understanding of economics without understanding Keynesian theory.