The Discovery of the Celendrical Date Line
The International Date Line concept emerged from explorers like Magellan and Drake, who documented time discrepancies during their voyages, highlighting the need for standardized timekeeping in navigation.
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the navigational achievements of explorers like Ferdinand Magellan and Francis Drake, the concept of the International Date Line began to take shape. The phenomenon of "losing a day" was first documented by Magellan's chronicler, Antonio Pigafetta, during their circumnavigation of the globe in the early 16th century. Upon returning to the Cape Verde Islands, the crew discovered a discrepancy in the day of the week, realizing they had effectively lost a day due to their westward journey. This observation was echoed by later explorers, including Drake and Francesco Carletti, who noted similar discrepancies in timekeeping when comparing their voyages with those of others traveling in the opposite direction. These accounts highlighted the complexities of timekeeping and the need for a standardized method to account for the differences in day and time experienced by sailors navigating the globe. The discussions surrounding these experiences contributed to the eventual establishment of the International Date Line, a crucial element in global navigation and timekeeping.
- The concept of the International Date Line emerged from early circumnavigators' experiences.
- Magellan's crew first documented the phenomenon of "losing a day" during their voyage.
- Similar time discrepancies were noted by later explorers like Francis Drake and Francesco Carletti.
- These observations underscored the need for standardized timekeeping in navigation.
- The establishment of the International Date Line was influenced by these historical accounts.
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12 commentshttps://en.wikipedia.org/wiki/Around_the_World_in_Eighty_Day...
The following day Fogg apologises to Aouda for bringing her with him since he now has to live in poverty and cannot support her. Aouda confesses that she loves him and asks him to marry her. As Passepartout notifies a minister, he learns that he is mistaken in the date – it is not 22 December, but instead 21 December. Because the party had travelled eastward, their days were shortened by four minutes for every degree of longitude they crossed; thus, although they had experienced the same amount of time abroad as people had experienced in London, they had seen 80 sunrises and sunsets while London had seen only 79. Passepartout informs Fogg of his mistake and Fogg hurries to the Club just in time to meet his deadline and win the wager. Having spent almost £19,000 of his travel money during the journey, he divides the remainder between Passepartout and Fix and marries Aouda.
When opened in the US the map is centered on the US. Scroll east to bring Europe and Africa into view and it shows lightning there. Keep scrolling east to see lighting in Asia and beyond.
When you come all the way around and the US comes into view there is no lightning. Keep going east and Europe and Africa and Asia have no lightning.
Go around east a few mores times. Then reverse direction. You've got to go around west the same number of times you went around east to get the lightning back.
For US users who want to check lighting in Europe or Africa this probably won't cause problems. They will most likely scroll east.
But for US users who want to check lighting in say Japan or Australia they will probably scroll west, and there will be no lightning. To see lighting in Japan or Australia US users have to scroll east past Europe.
Similarly tz has time zones as far east as +15:13:42 for Metlakatla in far south eastern Alaska, until 1867, since Alaska was settled from Russia. I think these are basically the furthest east and west the date line ever went (although maybe the Russians made it further south and east along the west coast of North America?)
Hopefully Eco + the title is enough but if it helps IMO it’s arguably his best work. All of the stepwise logic leading to madness of Name of the Rose and Foucault’s pendulum, a somewhat less slapstick sensibility than either, without descending into dryness as his later work. Super recommended.
I like the concept of chasing the sun. That should be a metaphor.
The “line” wasn’t a convention at all in the 16th century so how did sailors experience loss of a day?
https://en.m.wikipedia.org/wiki/International_Date_Line#:~:t....
A Romanian girl called Iliana/Ilana from Galati or Brailia I was in love with long ago recommended me Umberto Eco's The Island of the Day before when I met her in Taize. Sadly I lost her contact data and her lastname, forever lost in the day before.
I wrote a bot that archived it all and it's on my old university laptop still. Lots of gems, blog posts, articles that were all just deleted. I still need to upload it somewhere
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