Add Allen Ginsberg

Add Margaret Hamilton, Florian Schneider, Ron Hardy, Little Richard

Fix typo

Add Ken Kesey

Add Ivan Sutherland's birthday

Add Bert Sutherland
https://twitter.com/ComputerHistory/status/1230200277141250050

Add Larry Tesler
https://www.nytimes.com/2020/02/20/technology/lawrence-tesler-dead.html

Add Doug Engelbart

Add Terry Jones, once clarified who wasn't the messiah, but a very naughty boy

Sort

Add Grace Hopper and Richard Feynman

Add Aaron Swartz and Steve Jobs

Add Ted Nelson's birthday

Add Alan Perlis

Add Danny Cohen
https://www.nytimes.com/2019/08/16/obituaries/danny-cohen-who-helped-set-the-stage-for-a-digital-era-dies-at-81.html

branches: 1.29.2;
Add Fernando Jose Corbato
https://multicians.org/corby.html
https://www.nytimes.com/2019/07/12/science/fernando-corbato-dead.html

Add John von Neumann's date of death

branches: 1.27.4;
Fix a typo.

(or, `Emily Dickinson' - the American poet - was born on the same date)

branches: 1.26.8;
allllllexander the greeeaaaaat, his name struck fear into hearts of men!

...but let's conquer that fear and give ol' alex a consistent and
correct date of death.

(he died of fever in baaaaaabylooooooonnnn)

note birth and death of Douglas Adams

branches: 1.24.6;
correct spelling is "Christiaan Huygens"; from James J. Lippard
via jmc@openbsd

branches: 1.23.2; 1.23.8;
Add towns to dmr's dates.

Dennis "dmr" Ritchie R.I.P.

Use TAB as a separator to be consistent with the rest of this file.

add Buzz Aldrin, second man on the moon

add Stephen Hawking, 68 today

Fix some longstanding typos and remove an entry that is both redundant
and wrong at the same time.

Fix birth year for Meriwether Lewis.
Also add who he is.

(Why does this "birthday" file have deaths in it?)

branches: 1.16.28;
Tweak change for Asimov's entry some. Restore reference to
Russian SFSR, but note that it's now Russia, not part of the USSR.

- AFAIK, Samuel Barber and Edward Elgar are composers; move them to
calendar.music, complementing Barber's birthday.
- Remove duplicating Beethoven's birthday.
(some materials say it's 12/16, some say 12/17, and some christened on
12/17... I do not know which is correct)
- BTW, who is Johann Sebastian Bach born on 05/22, 1665?

branches: 1.14.2;
PR bin/24029: Asimov was born in Russia, the USSR no longer exists.

Give year of MLK's birth. Expand some names. Okayed by wiz.

Jimi Hendrix's death date belongs in the music calendar. Okayed by wiz.

On second thought, move BSD to calendar.computer.
While there, spell Dijkstra correctly.

Correct dates for Talbot and Zuse. Aristotle surely died only
once (though I have not been able to confirm the exact date).
Add NetBSD/FreeBSD birthday too for good measure.

Most of the changes from FreeBSD with corrections.

whitespace consistency

Add entries for Thomas Kelly and Queen Elizabeth
Provided by in bin/16219 by John Franklin.

Normalize BC year format, correct a few typos, remove duplicate Descartes.
Partly from FreeBSD.

Fix spelling of Gauss' fist name.

Typo *sigh*

Jon Postel died ;-(

Add Carl Sagan's death

Add David Packard & Konrad Zuse's deaths to calendar.birthday
submitted by Heiko W.Rupp.
closes pr-2448
Also, moved Alan Turing's birthday from calendar.computer to
calendar.birthday, removed duplicate Thoreau entry and cleaned up date
ordering in calendar.birthday

branches: 1.1.1;
Initial revision

- adjust dates of floating holidays for 2026
- correct and add missing release dates of NetBSD
- taken from https://www.NetBSD.org/releases/formal.html#history

branches: 1.14.2;
Fix date of Rogation Sunday, which I couldn't find on Wikipedia.

calendars: Update for 2025.

While here, remove some dates from calendar.holiday that are already in
calendar.judaic. This should make future updates easier.

branches: 1.12.2;
update for variable holidays in 2024

Update for 2023

branches: 1.10.2;
Update Advent Sunday date to 2022

update (western) christian calendar for 2022, with a particular
focus on public holidays relevant to me

update calendar files with all dates in 2020 as next release is expect late 2019

branches: 1.7.2; 1.7.4;
Update calendar files for the upcoming NetBSD 8.0 release. I'm
assuming that it will be released by August 1, which is two months
from now. Thus I used 2018 dates for all holidays between Aug.
1st and Dec. 31st, and 2019 dates for all holidays between Jan.
1st and Jul. 31st.

branches: 1.6.6; 1.6.12;
update floating holidays for 2017 in preparation for pullup for 7.1 release

branches: 1.5.2;
Adjust dates for floating holidays. Use 2015 for things happening from
mid-October onwards, and 2016 for things happening earlier.

branches: 1.4.10;
Update all variable days

- religious holidays taken from Wikipedia where available
- floating days (i.e. X day of Y month) taken from cal(1)
- NetBSD releases taken from http://www.netbsd.org/releases/formal.html#history
- hopefully somebody will update this for the 6.0 release

Hopefully, these days will be correct for the first year of NetBSD 6.0.

branches: 1.3.2; 1.3.20;
- update all dates that varies (hopefully, they'll be correct for the
first year that NetBSD 5.0 is out)
- add release date of NetBSD 4.0

XXX There are several UK "Bank Holidays" in calendar.holiday. Could
somebody update those and give an indication of when they are, please?

branches: 1.2.18;
It seems reasonable to include Christmas in calendar.christian. Per the
mishmash of anglican, catholic and other feast names included herein, use
both `Christmas' and `Feast of the Nativity' to denote this holiday.

This calendar could use serious updating, but it would be worth adding
better support for floating holidays first.

branches: 1.1.1;
Initial revision

1985: first ARM silicon and first Amiga

it's "its"

Add Quake's birthday
https://twitter.com/romero/status/1275026229524074496

X turned 36 today
http://www.talisman.org/x-debut.shtml

Add RISC-V's birthday
https://riscv.org/2020/05/happy-10th-birthday-risc-v/

It was aboard the Space Shuttle Atlantis using a Macintosh Portable.
https://support.apple.com/kb/TA30635

Note the birthday of Symbolics.com

Add K&R publish date
https://twitter.com/MIT_CSAIL/status/1231263883303645184

Apple buys NeXT

Sort

Add SICP
https://twitter.com/mit_csail/status/1164226910035087360

branches: 1.7.2;
Happy 32nd birthday SDF.org!
https://twitter.com/sdf_pubnix/status/1140280083598327810
https://sdf.org/?faq?BASICS?02

branches: 1.6.46;
first Apple Macintosh, 1984

On second thought, move BSD to calendar.computer.
While there, spell Dijkstra correctly.

Fix spelo: diffentiation -> differentiation

fix PR#3278, add some other dates taken from historical sources available on the web

Add David Packard & Konrad Zuse's deaths to calendar.birthday
submitted by Heiko W.Rupp.
closes pr-2448
Also, moved Alan Turing's birthday from calendar.computer to
calendar.birthday, removed duplicate Thoreau entry and cleaned up date
ordering in calendar.birthday

branches: 1.1.1;
Initial revision

spell "Chamonix" properly

branches: 1.36.10;
Add bicycle day

branches: 1.35.4;
Mention the Sand Creek massacre.

branches: 1.34.8;
allllllexander the greeeaaaaat, his name struck fear into hearts of men!

...but let's conquer that fear and give ol' alex a consistent and
correct date of death.

(he died of fever in baaaaaabylooooooonnnn)

typo

Pretty difficult for a TV show (Star Trek) to have a first airing
on two different dates. Dump the erroneous one.

If we're going to note the USSR shooting down civilian airliners,
we should be fair and pick on the USA as well.

branches: 1.30.4;
Nelson Mandela died today, aged 95. I whish farewell to a great statesman.

It's Henry _Morton_ Stanley and Dr. Livingston_e_. Unfortunately. they did
not meet at an airport.

branches: 1.28.2; 1.28.8;
add an entry about the US nationalising gold to replace old confiscation entry

branches: 1.27.2;
On december 16, 1991, Kazakhstan declared its independence from the USSR.

Ahem. "Battle" of Wounded Knee? How about "massacre"?

XXX: this file needs a *lot* of attention.

The US formally left the Gold Standard in 1971, not 1933. See:
http://en.wikipedia.org/wiki/Nixon_Shock

fix some typos

aspell

branches: 1.22.2;
Add author's names for two books.

Edit the "Women get the vote" entry to say "get the right to vote".
(Since "get the vote" doesn't tell much here about how a legislator
made the last vote to put this in effect.)
And so this calendar entry mentions U.S. also mention the 19th
Amendment to US Constitution.

Hindenburg exploded on May 6 not March 6

Begin major reworking of calendar.history. Goals are:

* every day of the year should have at least one entry
* all entries should have been fact-checked against reliable sources,
particularly for dates
* calendar should contain a fair balance of world history -- existing
calendar, being based on that shipped in 4.2BSD, was very northern
california-centric.

This commit meets these guidelines through March 13. I will continue to
update this as time permits.

Lincoln's birthday belongs (and already exists) in calendar.birthday.

Remove a duplicate entry.

Remove some duplicate entries, and improve another entry.
From Sergey Svishchev in private mail.

Lincoln was fatally shot on the 14th, and only the 14th. Move the more
detailed entry from 04/16 to 04/14.

branches: 1.14.2;
missed part of identifier on my first pass

Include year of My Lai massacre, correct spacing in name, and provide slightly
more detail regarding perpetrators.

Expand a couple names and fix some spelling errors. Okayed by wiz.

Add option to remove escape character before comment character in
fparseln(). Add escape characters before comment characters in the
few places those appear in the calendar data files.

Remove a duplicated entry.

add Columbia tragedy
submitted in PR bin/20163

Move LOTR dates to calendar.lotr. Add 09/11 terrorist attack.
Patch from John Franklin in misc/17461.

Lorian -> Lorien

seperate -> separate

Fixed wording error.

branches: 1.4.4;
Get pedantic about Pioneer's achievements. It was Pioneer 10
in 1983 that past Neptune's orbit. That does not, however, mean that it
left the solar system since the solar system is defined by the heliosphere.

Remove duplicated entry.

branches: 1.2.4;
Close pr-3115 from stephen.ma@jtec.com.au. He claims:
Sydney was settled by the English on 26 Jan, 1788 not 1778

branches: 1.1.1;
Initial revision

- adjust dates of floating holidays for 2026
- correct and add missing release dates of NetBSD
- taken from https://www.NetBSD.org/releases/formal.html#history

branches: 1.35.2;
calendars: Update for 2025.

While here, remove some dates from calendar.holiday that are already in
calendar.judaic. This should make future updates easier.

branches: 1.34.2;
update for variable holidays in 2024

branches: 1.33.2;
June 19 is Juneteenth in USA

U.S.S.R no longer exists

November 20 is International Transgender Day of Remembrance

Officially recongized in Ontario, Canada. Originates from the murder
of Rita Hester in Allston, Massachusetts, on November 28, 1998.

update calendar files with all dates in 2020 as next release is expect late 2019

branches: 1.29.2; 1.29.4;
Update calendar files for the upcoming NetBSD 8.0 release. I'm
assuming that it will be released by August 1, which is two months
from now. Thus I used 2018 dates for all holidays between Aug.
1st and Dec. 31st, and 2019 dates for all holidays between Jan.
1st and Jul. 31st.

branches: 1.28.4;
Only 35 years late.

branches: 1.27.6;
update floating holidays for 2017 in preparation for pullup for 7.1 release

branches: 1.26.2;
Fix typo - Bahamas starts with a 'B' not with a 'G'

Adjust dates for floating holidays. Use 2015 for things happening from
mid-October onwards, and 2016 for things happening earlier.

Fix year of Hawaiian Admission Day. From Henning Petersen in PR 49123.

branches: 1.23.2;
Happy Towel Day!

branches: 1.22.2;
delete duplicate (and wrong) entry for Thanksgiving Day in Canada

We only need to be told once about Lee-Jackson Day in Virginia today.
Remove a duplicate for Memorial Day in Michigan while we're here.

branches: 1.20.2;
Update all variable days

- religious holidays taken from Wikipedia where available
- floating days (i.e. X day of Y month) taken from cal(1)
- NetBSD releases taken from http://www.netbsd.org/releases/formal.html#history
- hopefully somebody will update this for the 6.0 release

Hopefully, these days will be correct for the first year of NetBSD 6.0.

branches: 1.19.6; 1.19.8;
Fix some longstanding typos and remove an entry that is both redundant
and wrong at the same time.

Updated UK Bank Holidays based on http://en.wikipedia.org/wiki/Bank_holiday
Thanks to perry@ for pointing me to this page.

- update all dates that varies (hopefully, they'll be correct for the
first year that NetBSD 5.0 is out)
- add release date of NetBSD 4.0

XXX There are several UK "Bank Holidays" in calendar.holiday. Could
somebody update those and give an indication of when they are, please?

Correct spellings.
From comet-berkeley <comet@transbay.net> on FreeBSD PR conf/126199,
and Frantisek Holop.

From Igor Sobrado <sobrado@openbsd.org>.

branches: 1.15.8;
typo

aspell

branches: 1.13.2;
3 typos/mispellings.
A lot more to do in here as many spellings are wrong or inconsistent.

Eid-ul-Fitr is never in July, is celebrated in all Muslim lands (not just
Pakistan), and is a variable holiday.

Update to the date of its next occurrence (since calendar(1) does not
support the Muslim calendar), and fix its description accordingly.

Victoria Day in Canada occurs on the Monday prior to May 25th

branches: 1.10.6;
Fix the date of the Australia Day holiday.

Spelling fix. Deomcratic ==> Democratic.

branches: 1.8.4;
Fix some typos and spelling errors. Okayed by wiz.

Correct some Japanese entries.
- Add New Year's Day
- Adults Day -> Coming-of-Age day
- Girl's Day is not a holiday
- Constitution Day is 5/3
- There's no Boy's Day on 5/1; maybe 5/5? (which is now Children's Day)
- Add Ocean Day (7/20)

Need sort?

Remove a duplicate bank holiday entry for 12/26.

japan fix due to emperor change (1988) - 4/29 is now called greenary day,
12/23 is the new emperor's birthday.

branches: 1.4.14;
close pr-2767 -- add German Reunification Day (from Heiko Rupp)

Added World AIDS Day. Which is today.
12/01 World AIDS Day

note that communism has gone away in hungary...
from Szabolcs Sziget <pink@bagira.fsz.bme.hu>

branches: 1.1.1;
Initial revision

- adjust dates of floating holidays for 2026
- correct and add missing release dates of NetBSD
- taken from https://www.NetBSD.org/releases/formal.html#history

branches: 1.12.2;
calendars: Update for 2025.

While here, remove some dates from calendar.holiday that are already in
calendar.judaic. This should make future updates easier.

branches: 1.11.2;
update for variable holidays in 2024

branches: 1.10.6;
Update to 2021, hopefully less errors made in this year.

Avoid the risk of being wrong and don't expand meaning of holiday.

Update to 2020 dates. While here:

- Add regional holidays: Sigd (Beta Israel), Mimouna (Morrocan).
- Transliterate some things in an Israeli Hebrew accent (Succos -> Sukkot,
Atzeres -> Atzeret)

branches: 1.7.2; 1.7.4;
Update calendar files for the upcoming NetBSD 8.0 release. I'm
assuming that it will be released by August 1, which is two months
from now. Thus I used 2018 dates for all holidays between Aug.
1st and Dec. 31st, and 2019 dates for all holidays between Jan.
1st and Jul. 31st.

branches: 1.6.6; 1.6.12;
update floating holidays for 2017 in preparation for pullup for 7.1 release

branches: 1.5.2;
Adjust dates for floating holidays. Use 2015 for things happening from
mid-October onwards, and 2016 for things happening earlier.

branches: 1.4.10;
Update all variable days

- religious holidays taken from Wikipedia where available
- floating days (i.e. X day of Y month) taken from cal(1)
- NetBSD releases taken from http://www.netbsd.org/releases/formal.html#history
- hopefully somebody will update this for the 6.0 release

Hopefully, these days will be correct for the first year of NetBSD 6.0.

branches: 1.3.2; 1.3.20;
- update all dates that varies (hopefully, they'll be correct for the
first year that NetBSD 5.0 is out)
- add release date of NetBSD 4.0

XXX There are several UK "Bank Holidays" in calendar.holiday. Could
somebody update those and give an indication of when they are, please?

branches: 1.2.18;
Update through a year from today. Barring support for the hebrew calendar
in calendar(1), this will have to do. While there, tweak a few spellings,
and add a missing holiday.

Dates checked against http://www.hebcal.com/

branches: 1.1.1;
Initial revision

Fix consistent misspelling of `Elassar', royal name of Aragorn/Strider.

Move LOTR dates to calendar.lotr. Add 09/11 terrorist attack.
Patch from John Franklin in misc/17461.

Eddie Van Halen, co-founder of Van Halen dies.

The Hacienda must be rebuilt.
https://twitter.com/McrHistory/status/1263386700249776130
https://twitter.com/Mr_Dave_Haslam/status/1263373996172640256

Add higher state of consciousness
https://twitter.com/joshwink1/status/1243360644042113024

Add The KLF's Chill Out

Add Andrew Weatherall
https://www.bbc.co.uk/news/entertainment-arts-51535685
http://www.rottersgolfclub.com/

Sort

branches: 1.19.2;
Note the date Larry Levan passed away https://en.wikipedia.org/wiki/Larry_Levan

Let's house this up a bit.
Add The Mix Collection, mixed by Sasha & John Digweed.
https://en.wikipedia.org/wiki/Renaissance:_The_Mix_Collection

branches: 1.17.24; 1.17.26;
No more walk on the wild side. RIP Lou Reed.

branches: 1.16.6; 1.16.12;
Chuck Berry was born in St. Louis, Missouri, and not in St. Jose,
California. Patch submitted by Marc Balmer in private e-mail.

aspell

branches: 1.14.2;
Add the year for:
08/15 Beatles replace drummer Pete Best with Richard Starkey, 1962
(While http://en.wikipedia.org/wiki/Ringo_Starr
says this happened on August 16 not the 15th.)

branches: 1.13.2;
Remove "that" from a long calendar entry that wrapped over two lines.
While there remove a "that" from another entry too.

Without commenting on what musicians do or do not belong in this file (the
current selection shows it's early eighties NoCal roots), if we're going to
include the births and deaths of other members of the Grateful Dead, we
should presumably include Jerry Garcia as well.

Make it so.

Fix spelling of `Bangladesh'

Johann Sebastian Bach I mentioned in the previous commit seems
wrong. Remove it, and put a part to the correct entry.

- AFAIK, Samuel Barber and Edward Elgar are composers; move them to
calendar.music, complementing Barber's birthday.
- Remove duplicating Beethoven's birthday.
(some materials say it's 12/16, some say 12/17, and some christened on
12/17... I do not know which is correct)
- BTW, who is Johann Sebastian Bach born on 05/22, 1665?

Expand some names, fix a spelling error (Pete Townshend might disagree,
but "quadrophonic" is not the proper spelling), give George Gershwin's
year of birth, add Stevie Ray Vaughan's birth/death dates. Okayed by wiz.

Jimi Hendrix's death date belongs in the music calendar. Okayed by wiz.

Add option to remove escape character before comment character in
fparseln(). Add escape characters before comment characters in the
few places those appear in the calendar data files.

Comiskey Park was the host of the Disco Demolition in 1979. Home of the
Chicago White Sox for 81 seasons: 1910-1990.

Add entry for birthday of John Towner Williams (08 Feb 1932). He's most
well-known for his movie scores, which include Star Wars, E.T., Close
Encounters of the Third Kind, Schindler's List, Indiana Jones (all
three), and many, many more. He was also the 19th conductor of the
Boston Pops.

It's sufficient to list Janis Joplin's death once only.

fix typo in Judy Garland's name, from Kenneth Stailey in pr 1147

branches: 1.1.1;
Initial revision

Add mac68ksf.

- adjust dates of floating holidays for 2026
- correct and add missing release dates of NetBSD
- taken from https://www.NetBSD.org/releases/formal.html#history

branches: 1.51.2;
add 10.1

branches: 1.50.2;
Note NetBSD 10.0

Add riscv port

Took the date of the first public announcement on port-riscv
of something usable (qemu).

branches: 1.48.2;
note the release NetBSD 9.3

Add NetBSD 9.1 and 9.2 release

branches: 1.46.2;
just spaces

align

Add NetBSD 9.0 & 8.2

Heads up by Harold Gutch

We use spaces, not tabs here

sort

Add 8.1 release

branches: 1.40.2;
add netbsd 8.0, fix whitespace

branches: 1.39.2;
Update calendar files for the upcoming NetBSD 8.0 release. I'm
assuming that it will be released by August 1, which is two months
from now. Thus I used 2018 dates for all holidays between Aug.
1st and Dec. 31st, and 2019 dates for all holidays between Jan.
1st and Jul. 31st.

branches: 1.38.4; 1.38.10;
add 7.1 release date

branches: 1.37.2;
update floating holidays for 2017 in preparation for pullup for 7.1 release

branches: 1.36.2;
note the release of NetBSD 7.0

Switch from a mixture of tabs & 3 spaces to a single style, 3 spaces

Add pkgsrc/Bitrig

- sort
- add a bunch of missing release

branches: 1.32.2;
Remove duplicated lines.

Add 5.1.4, 5.2.2. 6.0.4 and 6.1.3.

Add 6.0.5 and 6.1.4.

branches: 1.29.2;
Rename NetBSD/hp700 to NetBSD/hppa.

Unfortunately our VCS isn't very helpful here.

add today's releases: 5.1.4, 5.2.2, 6.0.4, and 6.1.3

NetBSD 6.0.3 and 6.1.2 released.

add NetBSD 5.1.3 and 5.2.1 releases

use spaces, not tabs

add NetBSD 6.1.1 release

add release dates for 6.0.1 and 6.1

note NetBSD 6.0 release

branches: 1.21.2;
Update all variable days

- religious holidays taken from Wikipedia where available
- floating days (i.e. X day of Y month) taken from cal(1)
- NetBSD releases taken from http://www.netbsd.org/releases/formal.html#history
- hopefully somebody will update this for the 6.0 release

Hopefully, these days will be correct for the first year of NetBSD 6.0.

branches: 1.20.6; 1.20.8;
Bah, fix typo in last: 2006, not 2005.

Add NetBSD 3.1.

void tabs, for consistency.

NetBSD 5.0.

branches: 1.16.4; 1.16.6; 1.16.8; 1.16.12;
- update all dates that varies (hopefully, they'll be correct for the
first year that NetBSD 5.0 is out)
- add release date of NetBSD 4.0

XXX There are several UK "Bank Holidays" in calendar.holiday. Could
somebody update those and give an indication of when they are, please?

branches: 1.15.12;
Update to include Zaurus Port.

branches: 1.14.6; 1.14.10;
Add dates of ews4800mips and 3.0 release.

Add NetBSD 2.1.

Add NetBSD 2.0.2 was released on April 12, 2005.

Sorted two entries that were out of order.
And used spaces (instead of tab) for one entry to be consistent with rest
of file.

Add that NetBSD 2.0 was released on December 09, 2004

+pkgsrc/OSF1

Initial import of iyonix port.

The Iyonix is a desktop machine from Castle Technology, based on a 600MHz
XScale[tm] 80321 processor.

* Uses the bootloader from NetBSD/acorn32, which is now 32-bit compatible.
* Currently boots multiuser with a serial console.
* Device support is not yet complete.

With help from abs.

add birthdays of pkgsrc support for AIX, BSDI, Darwin, IRIX, FreeBSD,
Linux, NetBSD, OpenBSD and Solaris.

folllow wiz' lead, add date of pkgsrc/Interix support.

Add xen port and 1.6.2 release date.

It's "its." Add NetBSD 1.6.1 release date. Okayed by wiz.

Fix incorrect date: 1.4 and 1.4.2 release.

Add evbppc.

Add NetBSD calendar file.
Dates supplied by Hubert Feyrer, thanks!

- adjust dates of floating holidays for 2026
- correct and add missing release dates of NetBSD
- taken from https://www.NetBSD.org/releases/formal.html#history

branches: 1.12.2;
calendars: Update for 2025.

While here, remove some dates from calendar.holiday that are already in
calendar.judaic. This should make future updates easier.

branches: 1.11.2;
update for variable holidays in 2024

branches: 1.10.8;
update calendar files with all dates in 2020 as next release is expect late 2019

Belatedly update several entries that move from year to year.

branches: 1.8.2; 1.8.4;
Update calendar files for the upcoming NetBSD 8.0 release. I'm
assuming that it will be released by August 1, which is two months
from now. Thus I used 2018 dates for all holidays between Aug.
1st and Dec. 31st, and 2019 dates for all holidays between Jan.
1st and Jul. 31st.

branches: 1.7.6; 1.7.12;
update floating holidays for 2017 in preparation for pullup for 7.1 release

branches: 1.6.2;
Adjust dates for floating holidays. Use 2015 for things happening from
mid-October onwards, and 2016 for things happening earlier.

Update for 2015 dates. From Jeff Woodall in PR misc/49587, with
a typo fixed in Election Day (and the "even years" bit removed).

branches: 1.4.10;
Update all variable days

- religious holidays taken from Wikipedia where available
- floating days (i.e. X day of Y month) taken from cal(1)
- NetBSD releases taken from http://www.netbsd.org/releases/formal.html#history
- hopefully somebody will update this for the 6.0 release

Hopefully, these days will be correct for the first year of NetBSD 6.0.

branches: 1.3.2; 1.3.20;
- update all dates that varies (hopefully, they'll be correct for the
first year that NetBSD 5.0 is out)
- add release date of NetBSD 4.0

XXX There are several UK "Bank Holidays" in calendar.holiday. Could
somebody update those and give an indication of when they are, please?

branches: 1.2.36;
Fix description of Thanksgiving Day per misc/14519 by Lawrence Doan,
and add a '*' since it's a moving target.

branches: 1.1.1;
Initial revision