History professor Charles Armstrong cited nonexistent or irrelevant sources in at least 61 instances in his 2016 book, “Tyranny of the Weak: North Korea and the World, 1950–1992,” according to the findings of an investigation by the University’s Standing Committee on the Conduct of Research.

Public Safety has opened an investigation into a report of a nonconsensual filming in a women’s bathroom of Broadway Hall, according to an email sent to Columbia College and Engineering students Wednesday evening.

Students in East Campus will be forced to do their laundry in Wien Hall or other undergraduate residence halls while the building’s laundry services are undergoing repair.

History professor Charles Armstrong, who specializes in modern Korean, East Asian, and international history, has faced accusations of source fabrication, plagiarism, and falsifying sources in his 2013 book, “Tyranny of the Weak: North Korea and the World, 1950–1992,” since 2016.

An unknown perpetrator tore an air vent cover off the wall, marked it with an anti-black racial slur, and placed it outside the front of a black resident’s door in Carman Hall earlier this month.

The Office of Undergraduate Admissions received 4,461 early decision applications to Columbia College and the Fu Foundation School of Engineering and Applied Science for the class of 2023, the highest number of early applicants in Columbia’s history.

To Rashel Mejia, CC ’22, who grew up in the Bronx and went to high school just 20 minutes away from Morningside Heights, Columbia’s campus seemed insurmountably distant.

A man was arrested on Columbia’s campus following a report of public lewdness in Uris Hall Saturday night.