eading: Adolf Hitler, the infamous leader of the Nazi Party, was born on April 20, 1889. He rose to power in Germany during the 1920s and 1930s, becoming Chancellor in 1933 and then Führer in 1934. His policies led to the devastation of World War II and the genocide of millions of people, including six million Jews during the Holocaust. --来自AI解读

eading: On April 20, 1902, Marie and Pierre Curie successfully isolated radium from pitchblende ore. This significant scientific achievement led to major advancements in the field of radioactivity and paved the way for the development of X-rays, which revolutionized medical imaging. --来自AI解读

eading: The Ludlow Massacre took place on April 20, 1914, in Ludlow, Colorado. It was a tragic event that resulted in the deaths of 20 people, including 11 children, during a labor strike by coal miners. This incident drew attention to the harsh working conditions and poor treatment of workers in the mining industry. --来自AI解读

eading: On April 20, 1945, Allied forces liberated the Dachau concentration camp in Germany, revealing the horrific conditions and atrocities committed by the Nazi regime. This event marked a significant moment in World War II, as it exposed the brutality of the Holocaust and led to the prosecution of Nazi war criminals. --来自AI解读

eading: The Columbine High School massacre took place on April 20, 1999, in Littleton, Colorado. Two students, Eric Harris and Dylan Klebold, carried out a violent attack on their classmates and teachers, resulting in the deaths of 13 people. This tragic event led to increased awareness about school violence and the need for improved mental health services. --来自AI解读

eading: On April 20, 2010, the Deepwater Horizon oil spill occurred in the Gulf of Mexico, causing one of the largest environmental disasters in history. The explosion on the oil rig resulted in the deaths of 11 workers and released millions of barrels of oil into the ocean, affecting marine life and coastal ecosystems. --来自AI解读