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When	What	Who	Comment
1 minute ago	Preservation Chicago: Paul Gapp Library (list) - diff	Preservation Chicago	Added Architecture of the 20th century in drawings to the list.
6 minutes ago	Preservation Chicago: Paul Gapp Library (list) - diff	Preservation Chicago	Added 200 years of American architectural drawing to the list.
8 minutes ago	inventions (list)	charlie smith231	Created a new list.
9 minutes ago	Preservation Chicago: Paul Gapp Library (list) - diff	Preservation Chicago	Added Frank Lloyd Wright drawings to the list.
11 minutes ago	Preservation Chicago: Paul Gapp Library (list) - diff	Preservation Chicago	Added Frank Lloyd Wright in the realm of ideas to the list.