Why do baseball umpires wear black underwear? How long is the longest burp ever recorded? Which two states make it illegal to get married on a dare? If you know the answers to those trivia questions, ...

Most Americans say striking Iran was the wrong decision and disapprove of Trump’s handling of the conflict, with stark partisan divides. A narrow majority of adults believe the U.S. military action ...

Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.