On this day, 86 years ago, on April 10, 1939 (February 21, 1939 in the lunar calendar), Austria held a "referendum" to merge into a province of Germany. Stukart was a Nazi legal expert. After that, he rushed to Lin and rushed to prepare legal texts overnight in accordance with Hitler's instructions. On March 13, he handed the draft law to Seth Inquart and Hitler respectively. Hitler saw the first sentence at the beginning of the draft law: "Austria is a province of Germany." She was so happy that she couldn't help but shed tears. This German-Austrian merger law was signed by Hitler and promulgated in Linsi that day. The German-Austrian Integration Law stipulates that a "free and secret referendum" will be held on April 10, in which Austrians can decide "the issue of integration with Germany." On the afternoon of March 14, Hitler arrived in Vienna. He came to the reviewing stand opposite the Hofburg, the Imperial Palace of Habsburg, where he received cheers from Viennese citizens and reviewed the German armored troops and the Austrian Nazi SS. He gave a speech with great enthusiasm, announcing that Austria had been integrated into Germany and calling on people to vote for the integration of Germany and Austria on April 10. Starting from March 15, he visited various parts of Austria and Germany. Everywhere he went, he attacked Schusnigg and incited people to vote in favor of the German-Austrian merger. On March 18, he returned to Berlin and delivered a speech to the Reichstag, announcing that the Germans would also hold a referendum on the German-Austrian merger. Later, he went on a tour in various places to win the yes vote, and did not end his tour until April 9. A referendum will be held on April 10. Two boxes were placed at each polling station, one box containing votes in favor of the German-Austrian merger, and the other box containing votes against the German-Austrian merger. Next to the ballot box sat the Nazi "scrutineer", holding a pen and notebook in his hand. When he saw who voted against it, he wrote down his name. Looking at this attitude, except for a very few people, who would dare to vote against it? The voting results will be announced soon. German officials announced that 99.08% of people in Germany and 99.75% of people in Austria voted in favor. Austria was annexed by Nazi Germany. Schuschnig was arrested and first locked in a small room at the secret police headquarters without sleep. He was forced to clean rooms, wash toilets, and empty sewage buckets for SS soldiers. He suffered various humiliations; later he was imprisoned in a German concentration camp. Jews in Austria were also insulted and persecuted, with thousands of Jewish men and women forced to sweep streets and toilets. Thousands of Jews were imprisoned in concentration camps. Jewish property was confiscated and looted. More than 4 million Jews and Germans who opposed German-Austrian integration were massacred by the Nazis. Austria fell into white terror, and its people suffered from subjugation.