"Today is February 29"

Did nothing interesting ever happen on February 29 between 1399 and
1547?

--- In , "Stephen Lark"
<stephenmlark@...> wrote:
>
> Did nothing interesting ever happen on February 29 between 1399 and
> 1547?
>

Not that leaps (sorry!) to mind. If you know of anything, tell us.

Katy

--- In , "Stephen Lark"
<stephenmlark@...> wrote:
>
> Did nothing interesting ever happen on February 29 between 1399 and
> 1547?
>

Wait a minute? Is this a trick question? (If so, it took me long
enough to realize it, hmmm? Would you believe my mind has been
occupied with Deep Thoughts on quantum mechanics?)

Was there a February 29 in the years between 1399 and 1547, or ever
between when the Caesars started nibbling away at February to make
their favorite months bigger and the calendar revision made to stop
the date of Easter from drifting backward?

I just looked up the history of Leap Year, and apparently February
29, Leap Day, was created by the papal bull "inter gravissimas" issued
by Pope Gregory XIII in 1582.

Katy

--- In , oregonkaty
<no_reply@...> wrote:
>
> --- In , "Stephen Lark"
> <stephenmlark@> wrote:
> >
> > Did nothing interesting ever happen on February 29 between 1399
and
> > 1547?
> >
>
> Wait a minute? Is this a trick question? (If so, it took me long
> enough to realize it, hmmm? Would you believe my mind has been
> occupied with Deep Thoughts on quantum mechanics?)
>
> Was there a February 29 in the years between 1399 and 1547, or ever
> between when the Caesars started nibbling away at February to make
> their favorite months bigger and the calendar revision made to stop
> the date of Easter from drifting backward?
>
> I just looked up the history of Leap Year, and apparently February
> 29, Leap Day, was created by the papal bull "inter gravissimas"
issued
> by Pope Gregory XIII in 1582.
>
> Katy
>
That explains it - another 140 years in England and another 335 years
in Russia - before this was introduced.

i've "played" around researching leap year day.
the julian calendar, used before the gregorian calander..for which the papal bull was issued..had leap year day..but it was feb 24th.

so our subjects of research "celebrated" leap year five days earlier than we do.

i did find one of the popes born on our current leap year day aka feb 29, 1468. sorry i didn't make note of which one.

here's the wiki link for the julian calender..someone more mathematically inclined can figure out exactly what they are talking about. you can also link to the other calanders used over the eras and eons within wikipedia.
http://en.wikipedia.org/wiki/Julian_calendar#Leap_year_error

and here's a fun link to "the book of days". it's loaded with trivia, but not much on leap year info. although there is something for everyday of the year, with lots of 15C tidbits.
http://www.thebookofdays.com/
it is (to me) entertaining to read how time is/was calculated/evolved.
http://www.thebookofdays.com/calender.htm

enjoy
roslyn
Stephen Lark <stephenmlark@...> wrote:
--- In , oregonkaty
<no_reply@...> wrote:
>
> --- In , "Stephen Lark"
> <stephenmlark@> wrote:
> >
> > Did nothing interesting ever happen on February 29 between 1399
and
> > 1547?
> >
>
> Wait a minute? Is this a trick question? (If so, it took me long
> enough to realize it, hmmm? Would you believe my mind has been
> occupied with Deep Thoughts on quantum mechanics?)
>
> Was there a February 29 in the years between 1399 and 1547, or ever
> between when the Caesars started nibbling away at February to make
> their favorite months bigger and the calendar revision made to stop
> the date of Easter from drifting backward?
>
> I just looked up the history of Leap Year, and apparently February
> 29, Leap Day, was created by the papal bull "inter gravissimas"
issued
> by Pope Gregory XIII in 1582.
>
> Katy
>
That explains it - another 140 years in England and another 335 years
in Russia - before this was introduced.

Roslyn wrote:



"i've "played" around researching leap year day.
the julian calendar, used before the gregorian calander..for which the papal
bull was issued..had leap year day..but it was feb 24th.

so our subjects of research "celebrated" leap year five days earlier than we
do.

i did find one of the popes born on our current leap year day aka feb 29,
1468. sorry i didn't make note of which one.

here's the wiki link for the julian calender..someone more mathematically
inclined can figure out exactly what they are talking about. you can also
link to the other calanders used over the eras and eons within wikipedia.
<http://en.wikipedia.org/wiki/Julian_calendar#Leap_year_error>
http://en.wikipedia.org/wiki/Julian_calendar#Leap_year_error "







For more explanation of how Leap Year Day in the Julian Calendar was
February 24th, see: http://en.wikipedia.org/wiki/Leap_year



Quote:

"The Julian <http://en.wikipedia.org/wiki/Julian_calendar> calendar, which
was developed in 46 BC <http://en.wikipedia.org/wiki/46_BC> by Julius
<http://en.wikipedia.org/wiki/Julius_Caesar> Caesar, and became effective
in 45 BC <http://en.wikipedia.org/wiki/45_BC> , distributed an extra ten
days among the months of the Roman Republican calendar. Caesar also replaced
the intercalary month by a single intercalary day, located where the
intercalary month used to be. To create the intercalary day, the existing
ante diem sextum Kalendas Martii (February 24
<http://en.wikipedia.org/wiki/February_24> ) was doubled, producing ante
diem bis sextum Kalendas Martii. Hence, the year containing the doubled day
was a bissextile (bis sextum, "twice sixth") year. For legal purposes, the
two days of the bis sextum were considered to be a single day, with the
second half being intercalated, but common practice by 238, when Censorinus
<http://en.wikipedia.org/wiki/Censorinus> wrote, was that the intercalary
day was followed by the last five days of February, a. d. VI, V, IV, III and
pridie Kal. Mar. (which would be those days numbered 24, 25, 26, 27, and 28
from the beginning of February in a common year), i.e. the intercalated day
was the first half of the doubled day. All later writers, including
Macrobius <http://en.wikipedia.org/wiki/Macrobius> about 430, Bede
<http://en.wikipedia.org/wiki/Bede> in 725, and other medieval computists
<http://en.wikipedia.org/wiki/Computus> (calculators of Easter
<http://en.wikipedia.org/wiki/Easter> ), continued to state that the
bissextum (bissextile day) occurred before the last five days of February."





More in response to Roslyn:



Pope Paul III was born February 29th, 1468.



Pope Hilary, in the other hand, died February 29th, 468. His feast day is
celebrated on February 28th.



Kate Skegg.

Thanks, Kate. So Paul III's birth ought to be on the website come 29.2.2012!

----- Original Message -----
From: Kate Skegg
To:
Sent: Tuesday, March 04, 2008 3:18 PM
Subject: Re: "Today is February 29"


Roslyn wrote:

"i've "played" around researching leap year day.
the julian calendar, used before the gregorian calander..for which the papal
bull was issued..had leap year day..but it was feb 24th.

so our subjects of research "celebrated" leap year five days earlier than we
do.

i did find one of the popes born on our current leap year day aka feb 29,
1468. sorry i didn't make note of which one.

here's the wiki link for the julian calender..someone more mathematically
inclined can figure out exactly what they are talking about. you can also
link to the other calanders used over the eras and eons within wikipedia.
<http://en.wikipedia.org/wiki/Julian_calendar#Leap_year_error>
http://en.wikipedia.org/wiki/Julian_calendar#Leap_year_error "

For more explanation of how Leap Year Day in the Julian Calendar was
February 24th, see: http://en.wikipedia.org/wiki/Leap_year

Quote:

"The Julian <http://en.wikipedia.org/wiki/Julian_calendar> calendar, which
was developed in 46 BC <http://en.wikipedia.org/wiki/46_BC> by Julius
<http://en.wikipedia.org/wiki/Julius_Caesar> Caesar, and became effective
in 45 BC <http://en.wikipedia.org/wiki/45_BC> , distributed an extra ten
days among the months of the Roman Republican calendar. Caesar also replaced
the intercalary month by a single intercalary day, located where the
intercalary month used to be. To create the intercalary day, the existing
ante diem sextum Kalendas Martii (February 24
<http://en.wikipedia.org/wiki/February_24> ) was doubled, producing ante
diem bis sextum Kalendas Martii. Hence, the year containing the doubled day
was a bissextile (bis sextum, "twice sixth") year. For legal purposes, the
two days of the bis sextum were considered to be a single day, with the
second half being intercalated, but common practice by 238, when Censorinus
<http://en.wikipedia.org/wiki/Censorinus> wrote, was that the intercalary
day was followed by the last five days of February, a. d. VI, V, IV, III and
pridie Kal. Mar. (which would be those days numbered 24, 25, 26, 27, and 28
from the beginning of February in a common year), i.e. the intercalated day
was the first half of the doubled day. All later writers, including
Macrobius <http://en.wikipedia.org/wiki/Macrobius> about 430, Bede
<http://en.wikipedia.org/wiki/Bede> in 725, and other medieval computists
<http://en.wikipedia.org/wiki/Computus> (calculators of Easter
<http://en.wikipedia.org/wiki/Easter> ), continued to state that the
bissextum (bissextile day) occurred before the last five days of February."

More in response to Roslyn:

Pope Paul III was born February 29th, 1468.

Pope Hilary, in the other hand, died February 29th, 468. His feast day is
celebrated on February 28th.

Kate Skegg.