What happened to history’s missing 10 days?

Clocks rule everything around us.

Offices and stores operate with rigidly set hours, which are announced to the world by chimes and digital displays. Meetings and classes are scheduled down to the minute, in planners and calendar apps. Sporting events are timed to fractions of a second (as seen in many races in the recent Winter Olympics). A concern with tracking the passage of time permeates almost every aspect of modern life. As someone who is both