The President's House was the first home of the U.S. president in the temporary capital of Phildelphia. While George Washington lived there, he had nine enslaved people that we know of., including the cook, Hercules.
Research:

Behind the Scenes Minis: Self-talk Hoax
19:57

The Pompey Stone Hoax
35:25

Émile Coué and Autosuggestion
39:52