A Brief History of Timekeeping
"For millennia, humans have sought to make sense of time, to visualize it, to ride its arrow, to hack it, to understand biological connection to it. 'Time is the very foundation of conscious experience,' writes Dan Falk in 'In Search of Time: The History, Physics, and Philosophy of Time.' And yet that awareness has a long history of friction -- to mark and measure the passage of time has proven remarkably challenging. For instance, Falk traces the evolution of the calendar, our dominant system for collectively experiencing time."
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