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foone
So, Kodak is weird. And a particular way they are weird has to do with the International Fixed Calendar, as developed by Moses Cotsworth in 1902. It's a calendar designed to be maximally compatible with the standard Gregorian while also fixing many of the problems of it.
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foone Jul 17
Replying to @Foone
So it's a 13-month calendar. All the standard English months plus the month of Sol, inserted between June and July. All months are 4-weeks long, and start on a Sunday.
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foone Jul 17
Replying to @Foone
So this has the nice property that a given date is always the same day of the week. January 8th is a Sunday, and is always a Sunday no matter what year it is, or if it's a leap year, or anything.
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foone Jul 17
Replying to @Foone
So, two obvious exceptions this calendar is going to have to deal with, and the unique way it deals with them: 1. 28*13 is 364: Where does the extra day go? 2. Leap years. Does it have them? Does it go out of sync with Gregorian?
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foone Jul 17
Replying to @Foone
Well, the extra day is Year Day, and is December 29th. Since December 28th is (of course) a Saturday, this'd be... Sunday? Kinda. But January 1st is also a Sunday. So it's really more a DOUBLE SUNDAY (or DOUBLE SATURDAY) situation.
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foone Jul 17
Replying to @Foone
As for leap years, it follows the same rules as the Gregorian calendar, but places the leap day in a different place: it's added to Sol, the middle month, as Sol 29. So you get another 3-day weekend situation where it's Saturday-???-Sunday
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foone Jul 17
Replying to @Foone
The years are synced with Gregorian, which means January 1-28th are identical for every year, then they diverge. Well, they're identical in terms of date: they will usually have different days of the week.
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foone Jul 17
Replying to @Foone
For example, this year started on a Tuesday, but in IFC January 1st is always a Sunday.
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🏳️‍⚧️ JⒶNE WICK 🏴🌹🐾 Jul 17
Replying to @Foone
Kodak is definitely weird, and they loomed a large Spectre over my hometown of Rochester, New York. They also, uh, put a nuclear reactor under part of the city and /didn't tell anyone./
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foone Jul 17
Replying to @Foone
So in the 1920s the League of Nations was evaluating alternative calendars and selected the IFC as the best of the 130 proposed calendars. The International Fixed Calendar League was formed in 1923 to promote it, lead by Sir Sandford Fleming.
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foone Jul 17
Replying to @Foone
They ceased operations in 1937 after they failed to get final approval to adopt IFC from the League of Nations. But what does this have to do with Kodak?
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foone Jul 17
Replying to @Foone
Well, one of the strongest supporters of the IFC was George Eastman, who invented the first successful roll-film system and founded Eastman Kodak.
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foone Jul 17
Replying to @Foone
So while the International Fixed Calendar was never adopted by any country, one place it did get used was within the Kodak corporation. From 1928 to 1989, they ran their business by the IFC instead of the gregorian calendar!
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Alex Florez Jul 17
Replying to @Foone
That sounds dope as hell for New Years parties.
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foone Jul 17
Replying to @Foone
The George Eastman House has examples of the Kodak Calendar as distributed through those years.
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foone Jul 17
Replying to @Foone
Eastman himself wrote an article for Nation's Business in 1926, explaining the benefits of this calendar. He was focusing more on businesses adopting it rather than nations.
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foone Jul 17
Replying to @Foone
One of the main benefits he mentions is that it'll make all months (other than February) shorter. Shorter months mean monthly transactions happen more often, so business don't have to wait as long for payments.
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foone Jul 17
Replying to @Foone
One fun side-effect of this calendar is that it fixes the date of Easter: Since the IFC is effectively a lunar calendar and has fixed days-of-the-week, Easter will always end up on April 15th.
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foone Jul 17
Replying to @Foone
In any case, by 1929 the International Fixed Calendar League was primarily being being driven by Eastman, who had opened a US branch of the IFCL. The League of Nations had narrowed down their calendar proposals to just two, including Eastman's (I'm not sure what the other was)
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foone Jul 17
Replying to @Foone
Unfortunately, George Eastman passed away in 1932, so the movement lost a lot of momentum, and then soon after the League of Nations was less worried about calendars and more about Europe ramping up to war.
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