Re: Act of 1752

1999-11-18 Thread Jim_Cobb

 May I recommend David Ewart Duncan's 'The Calendar' recently published  by
 4th Estate for an interesting insight into the calculation of the year etc.
 
 Paul Murphy

I'll second that; it was a very good read.

The full title is
  Calendar : Humanity's Epic
 Struggle to Determine a True
  and Accurate Year
by David Ewing Duncan

Here's an Amazon.com link if you want to learn more about it...

http://www.amazon.com/exec/obidos/ASIN/0380793245/qid=942943896/sr=1-3/002-3183584-8100040

Jim 40N45, 111W53
 --- -- 
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| Parametric| Salt Lake City, UT   | (801)-588-4632 |
|  Technology Corp. |   84108-1202 | Fax (801)-588-4650 |
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Repartee is something we think of twenty-four hours too late.  -- Mark Twain


Re: Act of 1752

1999-11-18 Thread Paul Murphy

May I recommend David Ewart Duncan's 'The Calendar' recently published  by
4th Estate for an interesting insight into the calculation of the year etc.

Paul Murphy



Act of 1752

1999-11-18 Thread The Shaws

One of the things about the Act of 1752 which bothered me for a long time
was
Why did we only lose 11 days

The Julian calendar started in 45BC, so there were 1752+45=1797 years (there
is no year 0)
The Julian calendar is 11mins 14 seconds out = 1 day every 128 years
1797/128=14.03 days
So why did we only lose 11 days?

I can reveal the answer, for all those out there who, like me, have spent
time worrying about this.

The spring equinox was not on 21st March in 45 BC, but it had moved to 21st
March by the time of the Council of Nicea in 325 AD.  This was when Emperor
Constantine - the first Christian Emperor of Rome - established, among other
things, the rules for Easter (and there's another story).   By the time that
the Gregorian calendar was introduced in 1582 - and the driving force was to
keep the date of Easter correct - the calendar had shifted by:-
1582-325=1257
1257/128=9.82 years
So there was a 10 day adjustment.

In 1752, we (UK and America) altered our calendar to keep us in line with
the rest of Europe, a phrase that still seems to have a certain ring of
familiarity.

So now you can sleeep easy in your beds.

Mike

[EMAIL PROTECTED]
53.37N  3.02W
Chester, UK


Re: Act of 1752

1999-11-16 Thread Jim_Cobb

Thibaud Taudin-Chabot [EMAIL PROTECTED] wrote:
 The year 1800 wouldn't be a leap year under the Gregorian calendar because
 18 is not a mutliple of 4.

Yes, this agrees with what I said about 1800 being treated as a normal
year in England as a result of her adoption the Gregorian reform.

Would England have adopted the Gregorian
 calendar right from the start in 1582 then 1600 would have been the first
 centennial leap year.

Regardless of adoption of the Gregorian change 1600 would have been a
leap year--under both the Julian and Gregorian rules 1600 is a leap
year (as is 2000, which is what began this thread of discussion).  The
first century non-leap year for early adopters of the reform was 1700.
However, 1700 was treated as a leap year in England and other late
adopters.  That is the reason England had one more day of adjustment
when the reform was finally adopted.

 Did you know that by the same act of Parliament in 1751 the start of the
 year was changed from 25 March to 1 Januari, commencing in 1752 ?

Yes.

Jim 40N45, 111W53
 --- -- 
| Jim Cobb  | 540 Arapeen Dr. #100 | [EMAIL PROTECTED]  |
| Parametric| Salt Lake City, UT   | (801)-588-4632 |
|  Technology Corp. |   84108-1202 | Fax (801)-588-4650 |
 --- -- 
You can't have everything.  Where would you put it? -- Steven Wright


Re: Act of 1752

1999-11-16 Thread Thibaud Taudin-Chabot

The year 1800 wouldn't be a leap year under the Gregorian calendar because
18 is not a mutliple of 4. Would England have adopted the Gregorian
calendar right from the start in 1582 then 1600 would have been the first
centennial leap year.
Did you know that by the same act of Parliament in 1751 the start of the
year was changed from 25 March to 1 Januari, commencing in 1752 ?

At 16:03 15-11-99 -0700, you wrote:
-Original Message/Oorspronkelijk bericht--
Wouldn't it be more accurate to say that the treatment of 1800 as a
normal year was a result of the Gregorian reform in England and her
colonies, but not the treatment of year 2000 as a leap year?  Under
both Julian and Gregorian systems 2000 would be a leap year.

Furthermore, the treatment of 1800 as a normal year was not the first
effect of the legislation.  September 1752 was very interesting, as
demonstrated by the UNIX cal program

   % cal 9 1752
  September 1752
S  M Tu  W Th  F  S
  1  2 14 15 16
   17 18 19 20 21 22 23
   24 25 26 27 28 29 30

Jim40N45, 111W53
=-=
Do not condemn the judgment of another because it differs from your
own.  You may both be wrong.   -- Dandemis

Frank Evans wrote:
 Greetings fellow dialists and calendrists,
 
 A note about the millennium leap year that I recently came across in the
 journal History Today:  When the next leap day arrives, on 29 February
 2000, it will be, for Britain, the result of the adoption of the
 Gregorian calendar in 1752.  By then most other European countries had
 already embraced the new calendar. The Act of Parliament which causes
 this first centenial leap year since then to take place was passed 248
 years and 3 months ago.  Is this the longest delayed action legislation
 ever?  By the way, the 1752 Act also applied to the UK Colonies
 including America (no offence intended).
 
 Frank  55N 1W
 -- 
 Frank Evans

-
Thibaud Taudin-Chabot
52°18'19.85 North  04°51'09.45 East
home email: [EMAIL PROTECTED]
(attachments max. 500kB; for larger attachments contact me first)


Act of 1752

1999-11-15 Thread Frank Evans

Greetings fellow dialists and calendrists,

A note about the millennium leap year that I recently came across in the
journal History Today:  When the next leap day arrives, on 29 February
2000, it will be, for Britain, the result of the adoption of the
Gregorian calendar in 1752.  By then most other European countries had
already embraced the new calendar. The Act of Parliament which causes
this first centenial leap year since then to take place was passed 248
years and 3 months ago.  Is this the longest delayed action legislation
ever?  By the way, the 1752 Act also applied to the UK Colonies
including America (no offence intended).

Frank  55N 1W
-- 
Frank Evans


RE: Act of 1752

1999-11-15 Thread Lufkin Brad

No offence taken.

Another result of the adoption of the Gregorian Calendar is the loss of 10
days.  People's birthdays were recomputed, which is why Washington's
Birthday is celebrated on 22 February, despite the fact that he was actually
born on 11 February.

Brad 39N 77W
-Original Message-
From: Frank Evans [mailto:[EMAIL PROTECTED]
Sent: Monday, November 15, 1999 3:51 PM
To: sundial@rrz.uni-koeln.de
Subject: Act of 1752


Greetings fellow dialists and calendrists,

A note about the millennium leap year that I recently came across in the
journal History Today:  When the next leap day arrives, on 29 February
2000, it will be, for Britain, the result of the adoption of the
Gregorian calendar in 1752.  By then most other European countries had
already embraced the new calendar. The Act of Parliament which causes
this first centenial leap year since then to take place was passed 248
years and 3 months ago.  Is this the longest delayed action legislation
ever?  By the way, the 1752 Act also applied to the UK Colonies
including America (no offence intended).

Frank  55N 1W
-- 
Frank Evans


RE: Act of 1752

1999-11-15 Thread Michael Koblic

At 05:14 PM 11/15/99 -0500, you wrote:
No offence taken.

Another result of the adoption of the Gregorian Calendar is the loss of 10
days.  People's birthdays were recomputed, which is why Washington's
Birthday is celebrated on 22 February, despite the fact that he was actually
born on 11 February.

And the Great October Socialist Revolution started on the 7th of November
1917...

Mike Koblic,
Quesnel BC