On this day in 1879, Scottish-born Canadian inventory and engineer Standford Fleming proposed to the Royal Canadian Institute the idea of establishing global standard time zones based on a single universal world time.
Up until that point, each (though not every) city around the world set up its own official clock based on the local position of the sun. Given that most humans, particularly in urban areas, did not travel long distances very quickly, this idiosyncratic and localized approach served well for millennia.
But with the introduction and mass utilization of railways and steamships, people began traveling fast enough over long distances to lead to some absurdly extreme variations in time; this required continually monitoring and resetting of timepieces as a train progressed across several municipalities in just a day. Hence Flemings’ suggestion, which he promoted at international conferences across the world.
And although his version of Universal Time was not accepted, the concept did catch on, and by 1929 most nations accepted a global standard of time. This proved to be one of those innovations that is taken for granted in modern society, but that reflected humanity’s unprecedented progression towards a globalized society.