Nightwork, updated edition: A History of Hacks and Pranks at MIT

An MIT "hack" is an ingenious, benign, and anonymous prank or practical joke, often requiring engineering or scientific expertise and often pulled off under cover of darkness—instances of campus mischief sometimes coinciding with April Fool's Day, final exams, or commencement. (It should not be confused with the sometimes non-benign phenomenon of computer hacking.) Noteworthy MIT...