Why is "History of slavery in Vermont" trending?

Wikipedia Overview

Vermont was amongst the first places to abolish slavery by constitutional dictum. Although estimates place the number of slaves at 25 in 1770, slavery was banned outright upon the founding of Vermont in July 1777, and by a further provision in its Constitution, existing male slaves became free at the age of 21 and females at the age of 18. Vermont's legislature not only abolished slavery, it also provided for universal male voting rights by eliminating property ownership as a requirement; this provision included African-American men. According to the Smithsonian's National Museum of African American History and Culture, "Vermont's July 1777 declaration was not entirely altruistic either. While it did set an independent tone from the 13 colonies, the declaration's wording was vague enough to let Vermont's already-established slavery practices continue."