1931 China Floods; The Deadliest Natural Disaster

In the summer of 1931, China experienced unprecedented rainfall, leading to massive flooding across the Yangtze and Huai River basins. Dikes failed along major waterways including the Yellow and Pearl Rivers, flooding hundreds of thousands of square kilometers. While initial government reports cited 145,000 deaths, modern estimates including subsequent famine and epidemics (cholera, typhoid) place the total death toll between 2 million and 4 million. Major cities like Nanjing and Wuhan were inundated, affecting approximately 50 million people and dealing a heavy blow to the already embattled Republican government.