Here are some important historical events that took place on February 6th:

1536: The Argentine city of Buenos Aires was founded.
1685: James II was crowned King of England, Scotland, and Ireland.
1820: The Missouri Compromise was passed by the US Congress, allowing Missouri to enter the Union as a slave state and Maine as a free state.
1843: Giuseppe Verdi's opera "I Lombardi alla prima crociata" was first performed in Milan, Italy.
1922: The Lincoln Memorial in Washington, D.C. was dedicated by President Warren G. Harding.
1993: World Trade Center bombing in New York City killed 6 and injured more than a thousand people.

These are just a few examples, and there have been many more important events that took place on February 6th throughout history.
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