TIME TRAVEL 1582
Eat your heart out, Marty McFly. Take your TARDIS elsewhere, Doctor Who. The real king of time travel is Pope Gregory XIII.
They say time is what you make it. When he reformed the calendar, Pope Gregory XIII remade time in a big way. With the the help of Jesuit astronomer Christopher Clavius, the calendar’s chief architect, the pope changed the course of history by commissioning a new calendar because the length of the Julian calendar was too long.
It counted each year as 365 days, 6 hours in length, while the math showed the real average length of a year is slightly less (365 days, 5 hours and 49 minutes). Long story short, they made a new calendar to set things right for the future, but in the process the Western world jumped through time: The Julian calendar day Thursday, 4 October 1582 was followed by the first day of the Gregorian calendar, Friday, 15 October 1582. According to Wikipedia:
In addition to the change in the mean length of the calendar year from 365.25 days (365 days 6 hours) to 365.2425 days (365 days 5 hours 49 minutes 12 seconds), a reduction of 10 minutes 48 seconds per year, the Gregorian calendar reform also dealt with the accumulated difference between these lengths. Between AD 325 (when the First Council of Nicaea was held, and the vernal equinox occurred approximately 21 March), and the time of Pope Gregory’s bull in 1582, the vernal equinox had moved backward in the calendar, until it was occurring on about 11 March, 10 days earlier. The Gregorian calendar therefore began by skipping 10 calendar days, to restore 21 March as the date of the vernal equinox.
It’s amazing how all of humanity, aka civilization, is shaped by the way time is measured and meted out by institutions. Time zones, work schedules, crazy dictators declaring Year Zero. I can remember using the change in daylight savings time to push a parental curfew to get more time with my high school sweetheart. We may not be able to travel through time on the scale of Pope Gregory, but we can bend the rules of time to our advantage.
(Sources: 1, 2)