How many angels can dance on the head of a pin?

"How many angels can dance on the head of a pin?" (alternatively "How many angels can stand on the point of a pin?") is a reductio ad absurdum challenge to medieval scholasticism in general, and its angelology in particular, as represented by figures such as Duns Scotus and Thomas Aquinas. It is first recorded in the 17th century, in the context of Protestant apologetics. It also has been linked to the fall of Constantinople, with the imagery of scholars debating while the Turks besieged the city.

How many angels can dance on the head of a pin?

"How many angels can dance on the head of a pin?" (alternatively "How many angels can stand on the point of a pin?") is a reductio ad absurdum challenge to medieval scholasticism in general, and its angelology in particular, as represented by figures such as Duns Scotus and Thomas Aquinas. It is first recorded in the 17th century, in the context of Protestant apologetics. It also has been linked to the fall of Constantinople, with the imagery of scholars debating while the Turks besieged the city.