16,000 years ago or 19,000 years ago
I know one was deteriorating relations with Spain. He negotiated for the purchase of Florida for $5 million for the expanding of US territories.
The safe houses of the Underground Railroad functioned as “train stations” for the fugitive slaves escaping to freedom, and the individuals working at these places helped guide them to freedom with directions and other help, thus the title “conductors”.
The name of the piece above is called a triangle that is the answer