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For a connected graph of 18 vertices, every possible spanning tree has exactly 17 edges.
Anthony Johnson
An African American who became one of the first African property owners and one of the first to have his right to own a slave legally recognized in the British American colonies.
Olaudah Equiano
An African writer and abolitionist who gained freedom from slavery and wrote an autobiography detailing his experiences, significantly influencing the abolitionist movement in Britain.
Jamestown
The first permanent English settlement in North America, founded in 1607 in present-day Virginia.
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