On September 2, 2019, at the Annual Meeting of the European Society of Cardiology in Paris, Professor Asch FM from the United States, on behalf of the World Alliance Societies of Echocardiography (WASE), presented a conference report entitled "Similarities and differences in left ventricular size and function among different races and countries: a study of WASE normal values", which attracted great attention from the participating experts. WASE is an international academic organization led by the American Society of Echocardiography (ASE) and attended by the Chinese Society of Echocardiography. The full text of the study was later published inJ Am Soc EchocardiogrThe author is the signed author of the article. Why did ASE conduct this echocardiographic normal study involving five continents, 15 countries and 19 medical centers with great fanfare? The story begins 15 years ago.