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Calendars
 Websites presented in alphabetical order The American Secular Holidays Calendar 
 This site calculates when federal holidays and other widely celebrated days fall on any given year after 1776. http://www.smart.net/~mmontes/ushols.html Topics: Holidays & Observances, Holidays by Region, Ready Reference & Quick Facts Last updated Mar 5, 2009 Astronomical Applications: Data Services
Provides "fundamental astronomical reference data, the position, brightness, and other observable characteristics of celestial bodies": Sun and Moon rise and set times, phases of the Moon, eclipses, planetary transits, positions of the Sun and Moon, the seasons (equinoxes, solstices, perihelion, aphelion), celestial navigation, and more. Enter data and produce your own table. Includes a navigational star chart. From the Astronomical Applications Department of the U.S. Naval Observatory. http://aa.usno.navy.mil/data/ Topics: Astronomy, Holidays and Observances Individually, Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Jun 1, 2006 Aztec Calendar
An explanation of Aztec calendars (the xiuhpohualli and the tonalpohualli); "most information on this Internet-site refers to the tonalpohualli, which is the sacred calendar." Provides descriptions and images of daysigns and gods, a calculator for matching Gregorian to Aztec dates, and the current day's solar year, 13-day period, and day name. http://www.azteccalendar.com/ Topics: Astronomy, Native Americans, Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Nov 2, 2005 Calendar Converter
"This page allows you to interconvert dates in a variety of calendars, both civil and computer-related." Includes Gregorian, Julian, Hebrew, Islamic, Persian, and Mayan calendars. From a computer programmer. http://www.fourmilab.ch/documents/calendar/ Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Dec 21, 2006 Calendars Through the Ages: Calendars From the Sky
This online exhibit "explore[s] the fascinating history of the human endeavor to organize our lives in accordance with the sun and stars." Includes a timeline of calendar facts, and discussions about calendars in use (such as Chinese, Islamic, and Jewish) and not in use (French Revolutionary, Mayan, and Roman), the change from the Julian to Gregorian calendar, and more. Sponsored by the Institute for Dynamic Educational Advancement and public and private supporters. http://www.webexhibits.org/calendars/ Topics: Ready Reference & Quick Facts Last updated Jul 26, 2008 Catholic Online: Saints and Angels
The Saints section of this site has hundreds of entries and is searchable and browsable. Also has pages with calendars, a FAQ, lists of patron saints, Black saints, and Irish saints. The Angels section is less comprehensive but is a good introduction. http://www.catholic.org/saints/ Topics: Christianity, Holidays and Observances Individually, Ready Reference & Quick Facts, Religion Last updated Apr 11, 2003 Chabad.org: Jewish Holidays
Provides information about preparing for and observing Jewish holidays. In addition to the holiday calendar, offers information about religious observance, cooking, fasts, activities for children, and more. Includes a link to an international Shabbat candle-lighting schedule. From the Jewish organization Chabad-Lubavitch. http://www.chabad.org/holidays/default_cdo/jewish/Holidays.htm Topics: Food & Cooking, Holiday Foods, Beverages, and Recipes, Holidays & Observances, Holidays and Observances Individually, Judaism, Ready Reference & Quick Facts Last updated Jun 3, 2009 Chambers's Book of Days
"A Miscellany of Popular Antiquities in connection with the Calendar." Browse this electronic reprint of the original book (published in 1879) page by page, or select a date from a calendar to see who was born and died on that date and other significant events. From the University of Wisconsin-Madison Libraries. http://www.library.wisc.edu/etext/BookofDays/ Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Mar 16, 2005 Countdown to New Year
Count down to the New Year. Customize to your local time zone, or view multiple time zones at once. Party hat optional. http://www.timeanddate.com/counters/newyear.html Topics: Fashion, Holidays and Observances Individually, Ready Reference & Quick Facts, Ready Reference & Quick Facts, Science, Science Last updated Dec 29, 2004 Create Calendar for Any Year
Use this site to create a calendar for any given year. Includes options to create calendars showing holidays for different countries. Also includes links to find the duration between two dates, adding a number of days to a given date, and other calendar-related information. http://www.timeanddate.com/calendar/generate.html Topics: Ready Reference & Quick Facts Last updated Dec 13, 2007 Customize Countdown
How many seconds, minutes, hours, days, have you been alive? Can also check the time to any date in the past or future. From a Norwegian web designer. http://www.timeanddate.com/counters/customcount.html Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts, Science, Science Last updated Jul 21, 2005 Dates of Easter Sunday and Perpetual Calendar, 1550-2049 (for Great Britain and the Colonies)
Dates of Easter Sunday for the years 1550-2049. From GENUKI, a genealogy site with a focus on the United Kingdom and Ireland. http://www.genuki.org.uk/big/easter/ Topics: Holidays and Observances Individually, Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Mar 3, 2005 Earth Calendar
The "Today" button creates a list of today's holidays around the world. Tabs allow browsing by country, religions, or date. This simple site also gives dates of new and full moons. Searchable. http://www.earthcalendar.net/ Topics: Holidays & Observances, Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Nov 22, 2002 Famous Leap Day Babies
List of famous Leap Day (February 29) babies of history from 1468 to 1992. Includes Pope Paul III (1468), composer Gioacchino Rossini (1792), and saxophonist Jimmy Dorsey (1904). From a website dedicated to people born on Leap Day. http://leapyearday.com/FamousLeapies.htm Topics: Holidays & Observances, Ready Reference & Quick Facts Last updated Feb 27, 2008 Gregorian-Hijri Dates Converter
Convert an Islamic calendar Hijri date ("the Islamic calendar. It started in the moon year in which prophet Mohammed immigrated from Makkah to Madinah") to the Gregorian date or vice versa. From a computer scientist. http://www.rabiah.com/convert/ Topics: Faiths, Ready Reference & Quick Facts, Ready Reference & Quick Facts, September 11 & Beyond Last updated Jan 15, 2005 History of the Advent Calendar
This page from a German advent calendar company presents information on the origins of advent calendars and a short history of their evolution from simple chalk lines marking off the days in December until Christmas to paper calendars with windows. The online Advent Calendar Museum provides photographs of calendars from the 1940s through 1960s. Also includes a brief history of the Sellmer Company in Stuttgart and an online tour of calendar production. http://www.sellmer-verlag.de/history.htm Topics: Christmas, Holidays & Observances, Ready Reference & Quick Facts Last updated Dec 1, 2005 The Ides of March: Just One of a Dozen Ides
"The soothsayer's warning to Julius Caesar, 'Beware the Ides of March,' has forever imbued [March 15] with a sense of foreboding." This site from Infoplease.com explains the meaning behind the expression "Ides of March" and the system of Kalends, Nones, and Ides used in the Roman calendar. Also includes links to related calendar information. http://www.infoplease.com/spot/ides1.html Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Mar 9, 2006 JewishHolidays.org
This resource features the current upcoming Jewish holiday on the main page, and has a rolling calendar of dozens of other holidays, presented chronologically. Each entry has dates, a brief description, and related links. The section "For Kids" features games and other fun activities. Includes locators for Jewish religious services and holiday events in the San Francisco Bay Area. http://www.sfjcf.org/jholidays/ Topics: Food & Cooking, Holiday Foods, Beverages, and Recipes, Holidays & Observances, Holidays and Observances Individually, Judaism, Ready Reference & Quick Facts Last updated Mar 2, 2005 Leap Year
This site provides easy-to-understand scientific background information on the concept of a leap year. Features illustrations and links to information on related astronomical events such as leap day, the calendar, seasons, vernal equinox, tropical year, century, and Gregorian, Iranian, and Julian calendrical systems. The author is a scientist with advanced degrees in physics and planetary science. http://scienceworld.wolfram.com/astronomy/LeapYear.html Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Feb 26, 2004 The Lectionary Page: A Liturgical Calendar For Upcoming Weeks
"This site was created to support all those who need access to the lesson texts of the Episcopal (ECUSA) Eucharistic Lectionary," based on the New Revised Standard Version (NRSV) of the Bible. The texts are presented in calendar form, as well as through a browsable index sorted by liturgical year, holidays, feasts, fasts, and other special dates. "The liturgical color appropriate for the day is indicated." Includes several related links. http://www.io.com/~kellywp/ Topics: Christianity, Holiday Foods, Beverages, and Recipes, Holidays & Observances, Ready Reference & Quick Facts, Religion Last updated Dec 22, 2003 Louisiana Division Fact Finder
Compilation of "fugitive" fact files related to Louisiana, including New Orleans neighborhoods and ward boundaries in New Orleans, past and future Mardi Gras dates, origins of New Orleans words and traditions (such as Carnival colors and pralines), burial places of New Orleans musicians, New Orleans telephones exchanges, and more. From the Louisiana Division of the New Orleans Public Library. http://nutrias.org/%7Enopl/facts/facts.htm Topics: Ready Reference & Quick Facts, U.S. History By Place Last updated Feb 12, 2007 Patron Saints Index
Access to over 3,900 saints from a Catholic perspective; includes nationality, occupation, vocation, hobby, condition, and feast day. Browsable and searchable. http://www.catholic-forum.com/saints/indexsnt.htm Topics: Christianity, Holidays and Observances Individually, Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Apr 11, 2003 Roman Numerals and Dates
Interesting, well-written site that provides the history of Roman numerals and instructions for converting modern dates to the Roman calendar. Includes conversion tables for Arabic and Roman numbers from 1 to 2100. http://www.wilkiecollins.demon.co.uk/roman/front.htm Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Jun 25, 2002 Space Calendar
A directory of links to sites covering "astronomical and space-related activities and anniversaries for the coming year." Includes archive dating back to 2003. From NASA. http://www.jpl.nasa.gov/calendar/ Topics: Geography, Holidays and Observances Individually, Ready Reference & Quick Facts Last updated Oct 30, 2005 Time & Timekeeping: Leap Years
Explanation about the need for and calculation of Leap Years. "The reason for these rules is to bring the average length of the calendar year into line with the length of the Earth's orbit around the Sun." Also describes how the adoption of the Gregorian calendar was made in Catholic countries in 1582 and in Britain and her colonies in 1752, "when 2 September was followed by 14 September." From the U.K. National Maritime Museum. http://www.nmm.ac.uk/explore/astronomy-and-time/time-facts/leap-years Topics: Ready Reference & Quick Facts Last updated Sep 22, 2009 time and date.com
Collection of clocks, calendars (including holidays and observances), countdowns, time zone information, and related tools for different regions of the world. Searchable and browsable. Note: banner advertisements are not labeled as such and blend with rest of site. http://www.timeanddate.com/ Topics: Holidays & Observances, Ready Reference & Quick Facts, Science, Science Last updated May 3, 2005 Today in Literature
This site features "engaging stories about the great books, writers, and events in literary history." Provides a new, original, biographical story each day as well as lists of works by and about the authors, basic facts, and related links. Browsable by author. Free registration required to access the story archives. http://www.todayinliterature.com/ Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Nov 13, 2003 Universal Photoperiod Calendar
This site provides a calculator that displays the day length, times for sunrise and sunset, the height angle of the sun at noon, the declination, and the latitude and longitude for menu of selected cities or choose a latitude and longitude for the calculations and select daylight-saving time or standard time. From a computer programming hobbyist with a background in engineering. http://www.sci.fi/~benefon/sol.html Topics: Astronomy, Ready Reference & Quick Facts Last updated Jul 1, 2009 Why Has the Date Changed for Start of Spring?
This article describes that while the first day of spring in the Northern Hemisphere traditionally has been celebrated as March 21, the vernal equinox has "landed on March 21, only 36 out of 100 years [during the 20th century]. And from 1981 to 2102, Americans will celebrate the first day of spring no later than March 20." Explains reasons why seasonal dates can vary from year to year. From Space.com. http://www.space.com/spacewatch/050318_equinox.html Topics: Ready Reference & Quick Facts Last updated Mar 11, 2008 Why Leap Years?
"On this page you will find information about leap years, why and when they are used." Includes links to calendars for select leap years. http://www.timeanddate.com/date/leapyear.html Topics: Ready Reference & Quick Facts, Ready Reference & Quick Facts Last updated Dec 31, 2003 [Canadian] Public Holidays and Other Important Dates
A list of Canadian national and provincial/territorial holidays for the next couple of years, plus a list of important Canadian anniversaries from 2000 to 2010. Also available in French. Provided by the Canadian government. http://www.pch.gc.ca/pgm/ceem-cced/jfa-ha/index-eng.cfm Topics: Holidays & Observances, Holidays and Observances Individually, Holidays by Region, Ready Reference & Quick Facts Last updated Sep 15, 2009 |
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