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June 20 - Wikipedia
Historical Events on June 20 - On This Day
June 20th Holidays - National Today
What Happened on June 20 - On This Day
What Happened on June 20 - HISTORY
On This Day - What Happened on June 20 | Britannica
Events in History on June 20 - On This Day
What to know about Juneteenth, the emancipation holiday - NBC News
Today in History: June 20
More on this Day - June, 20 | Britannica - Encyclopedia Britannica