When did Modern Marvels Season 6 Episode 18 air?
Modern Marvels Season 6 Episode 18 aired on February 22, 1999.


HISTORY’s longest-running series moves to H2. Modern Marvels celebrates the ingenuity, invention and imagination found in the world around us. From commonplace items like ink and coffee to architectural masterpieces and engineering disasters, the hit series goes beyond the basics to provide insight and history into things we wonder about and that impact our lives. This series tells fascinating stories of the doers, the dreamers and sometime-schemers that create everyday items, technological breakthroughs and manmade wonders. The hit series goes deep to explore the leading edge of human inspiration and ambition.
Does anybody really know what time it is? Set your clocks as we explore the relativity of time from antiquity–when man attempted to chart time with methods ranging from shadows, candles, and water–to today’s atomic clock system–accurate to within one second every two-million years.
Direct answers for episode-level questions and details.
Modern Marvels Season 6 Episode 18 aired on February 22, 1999.
This episode runs for approximately 44 minutes.
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