Wikipedia:Selected anniversaries/January 20
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This is a list of selected January 20 anniversaries that appears on the "On this day" section of the Main Page. To suggest a new item, in most cases you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition may be controversial, or on a day that is or soon will be on the Main Page, please post your suggestion on the talk page instead.
To report an error when this appears on the Main Page, see Main Page errors.
- 1320 – After reuniting Poland, Władysław the Short (sarcophagus figure pictured) was crowned king in Kraków.
- 1885 – LaMarcus Adna Thompson, sometimes called the "Father of Gravity", patented the roller coaster.
- 1921 – The first Turkish Constitution was ratified by the Grand National Assembly, making fundamental changes in Turkey by enshrining the principle of national sovereignty.
- 1942 – World War II: At the Wannsee Conference held in the Berlin suburb of Wannsee, senior Nazi German officials decided the "Final Solution to the Jewish Question", accelerating The Holocaust.
- 1990 – Black January: The Soviet Red Army violently cracked down on Azeri pro-independence demonstrations in Baku, Azerbaijan SSR.
More events: January 19 – January 20 – January 21
