On Christmas day in 1950, the Stone of Scone was removed, heist-style, from Westminster Abbey. Some believed it to be an act of theft, and others, liberation.
Research:

Robert Moses and the Shaping of New York, Part 1
41:59

SYMHC Classics: Eradication of Smallpox
43:25

Behind the Scenes Minis: Progressive Medicine
22:11