The Kentucky derby
The state that did not free the slaves was Delaware. Kentucky, Maryland, and Missouri did not free slaves either.
Those states didn't have slaves.
Well, now it is.
Operation Kentucky happened on 1967-11-01.
people had less slaves
Kentucky was the last state to free its slaves legally. The other two border states had already radified amendments prior to Kentucky and the rest were freed through the emancipation proclimation. Kentucky was the only state to have its slaves legally released from bondage due to the federal governments passage of the 13th amendment.
they rot
Bird's invasion of Kentucky happened on 1780-08-04.
It was the first year of the Kentucky Derby Festival.
They too were slaves.
Kentucky become the 15th state