253 years ago today, April 19, 1772 (March 17, 1772 in the lunar calendar) was the birth of the British classical economist Ricardo. David Ricardo is a famous British classical political economist. Born on April 19, 1772. His father was Jewish and an exchange broker who was good at speculation and made a fortune. I was influenced by my father since I was a child, and when I was 14 years old, I started to engage in stock speculation with my father. Therefore, at the age of 25, he had become a rich man with a property of 30 million francs. After that, he stopped exchange activities and began his study and life. After reading Adam Smith's "The Wealth of Nations" in 1799, he became interested in economics. In 1815, the British Parliament passed the Grain Act, imposing heavy taxes on grain imported from abroad, but he raised objections. His objection was raised after in-depth observation of real economic issues. Many people found it very meaningful and hoped that he would understand and systematize this theory. In 1817, he finally published the book "Principles of Political Economy and Taxes", which quickly made him an authority in the British economic community. Due to his reputation in the economic world. He was elected governor in 1818 and elected to the House of Commons the following year. Later, in addition to continuing to write books, he also devoted himself to the reform of the Bank of England. He died of illness on September 14, 1823.